Information:  - Polar Trappers is a 1938 Donald Duck and Goofy cartoon set in the South Pole , where the duo are trapping polar animals . This is the first cartoon that Donald Duck and Goofy appear without Mickey Mouse .  - Donald Duck is a cartoon character created in 1934 at Walt Disney Productions. Donald is an anthropomorphic white duck with a yellow-orange bill, legs, and feet. He typically wears a sailor shirt and cap with a bow tie. Donald is most famous for his semi-intelligible speech and his mischievous and temperamental personality. Along with his friend Mickey Mouse, Donald is one of the most popular Disney characters and was included in TV Guide's list of the 50 greatest cartoon characters of all time in 2002. He has appeared in more films than any other Disney character, and is the most published comic book character in the world outside of the superhero genre.  - A comic book or comicbook, also called comic magazine or simply comic, is a publication that consists of comic art in the form of sequential juxtaposed panels that represent individual scenes. Panels are often accompanied by brief descriptive prose and written narrative, usually dialog contained in word balloons emblematic of the comics art form. Although some origins in 18th century Japan and 1830s Europe, comic books were first popularized in the United States during the 1930s. The first modern comic book, "Famous Funnies", was released in the United States in 1933 and was a reprinting of earlier newspaper humor comic strips, which had established many of the story-telling devices used in comics. The term "comic book" derives from American comic books once being a compilation of comic strips of a humorous tone; however, this practice was replaced by featuring stories of all genres, usually not humorous in tone.  - Walter Elias "Walt" Disney (December 5, 1901December 15, 1966) was an American entrepreneur, animator, voice actor and film producer. A pioneer of the American animation industry, he introduced several developments in the production of cartoons. As a film producer, Disney holds the record for most Academy Awards earned by an individual, having won 22 Oscars from 59 nominations. He was presented with two Golden Globe Special Achievement Awards and an Emmy Award, among other honors. Several of his films are included in the National Film Registry by the Library of Congress.  - Goofy is a funny-animal cartoon character created in 1932 at Walt Disney Productions. Goofy is a tall, anthropomorphic dog with a Southern drawl, and typically wears a turtle neck and vest, with pants, shoes, white gloves, and a tall hat originally designed as a rumpled fedora. Goofy is a close friend of Mickey Mouse and Donald Duck and is one of Disney's most recognizable characters. He is normally characterized as extremely clumsy and dimwitted, yet this interpretation is not always definitive; occasionally Goofy is shown as intuitive, and clever, albeit in his own unique, eccentric way.  - Mickey Mouse is a funny animal cartoon character and the official mascot of The Walt Disney Company. He was created by Walt Disney and Ub Iwerks at the Walt Disney Studios in 1928. An anthropomorphic mouse who typically wears red shorts, large yellow shoes, and white gloves, Mickey has become one of the world's most recognizable characters.    After reading the paragraphs above, we are interested in knowing the entity with which 'polar trappers' exhibits the relationship of 'producer'. Find the answer from the choices below.  Choices: - europe  - film producer  - ub iwerks  - walt disney
A:
walt disney