Q: Question: "what group is mentioned first?"  Context: "The linguistic heritage of the British Isles is rich, with twelve languages from six groups across four branches of the Indo-European family. The Insular Celtic languages of the Goidelic sub-group (Irish, Manx and Scottish Gaelic) and the Brittonic sub-group (Cornish, Welsh and Breton, spoken in north-western France) are the only remaining Celtic languages—the last of their continental relations becoming extinct before the 7th century. The Norman languages of Guernésiais, Jèrriais and Sarkese spoken in the Channel Islands are similar to French. A cant, called Shelta, is spoken by Irish Travellers, often as a means to conceal meaning from those outside the group. However, English, sometimes in the form of Scots, is the dominant language, with few monoglots remaining in the other languages of the region. The Norn language of Orkney and Shetland became extinct around 1880."  Answer:
A: the Indo-European family

Q: Question: "Which of the following is not something that annoys John Becker: his patients, his friends, or CBS?"  Context: "Bronx native Nancy Savoca's 1989 comedy, True Love, explores two Italian-American Bronx sweethearts in the days before their wedding. The film, which debuted Annabella Sciorra and Ron Eldard as the betrothed couple, won the Grand Jury Prize at that year's Sundance Film Festival. The CBS television sitcom Becker, 1998–2004, was more ambiguous. The show starred Ted Danson as Dr. John Becker, a doctor who operated a small practice and was constantly annoyed by his patients, co-workers, friends, and practically everything and everybody else in his world. It showed his everyday life as a doctor working in a small clinic in the Bronx."  Answer:
A: CBS

Q: Question: "How does jet lag affect sleep?"  Context: "Shift-work or chronic jet-lag have profound consequences on circadian and metabolic events in the body. Animals that are forced to eat during their resting period show increased body mass and altered expression of clock and metabolic genes.[medical citation needed] In humans, shift-work that favors irregular eating times is associated with altered insulin sensitivity and higher body mass. Shift-work also leads to increased metabolic risks for cardio-metabolic syndrome, hypertension, inflammation."  Answer:
A: profound consequences

Q: Question: "What is needed to prove the theory?"  Context: "In the early 11th century, the Muslim physicist Ibn al-Haytham (Alhacen or Alhazen) discussed space perception and its epistemological implications in his Book of Optics (1021), he also rejected Aristotle's definition of topos (Physics IV) by way of geometric demonstrations and defined place as a mathematical spatial extension. His experimental proof of the intromission model of vision led to changes in the understanding of the visual perception of space, contrary to the previous emission theory of vision supported by Euclid and Ptolemy. In "tying the visual perception of space to prior bodily experience, Alhacen unequivocally rejected the intuitiveness of spatial perception and, therefore, the autonomy of vision. Without tangible notions of distance and size for correlation, sight can tell us next to nothing about such things.""  Answer:
A:
vision