In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Qulpa was Khan of the Blue Horde from 1359 till 1360, after having deposed his brother Berdi Beg. Ruling for just a year, Qulpa was murdered by another brother Nawruz Beg in 1360., Mamai (1335 - 1380), of Kiyat descent, was a powerful military commander of the Golden Horde in the 1370s. 
The Horde controlled the lands in what is now the southern Ukrainian/southern Russia and the Crimean Peninsula., Berdi Beg (or Berdibek) was Khan of the Golden Horde from 1357 till 1359, succeeding his father Jani Beg of whom Berdi Beg may have been behind the poisoning. His reign was marked by turmoil and political murders, and in 1359 he was assassinated by his brother Qulpa, after which the Golden Horde fell apart. He had one unnamed daughter who was the wife of Mamai., The Golden Horde ("Altan Ordn uls" "Altn Urda") was a Mongol and later Turkicized khanate established in the 13th century and originating as the northwestern sector of the Mongol Empire. With the fragmentation of the Mongol Empire after 1259 it became a functionally separate khanate. It is also known as the Kipchak Khanate or as the Ulus of Jochi., Sultan Mohammed Öz Beg, better known as Uzbeg or Ozbeg (12821341, reign 13131341), was the longest-reigning khan of the Golden Horde, under whose rule the state reached its zenith. He was succeeded by his son Jani Beg., Nawruz Beg was a son of Jani Beg and Khan of the Blue Horde . He succeeded to the throne after murdering his brother Qulpa , though like his brothers , his reign lasted a year before he himself died ; the cause of his death is unknown . Nawruz Beg 's death precipitated the period of anarchy in which over twenty khans succeeded in the Horde ( the first of them was Khidr ) or in various parts of the Horde , many of them concurrent , and having no real claim to the throne . Some of khans reigned only de jure ; supreme military rulers ruled de facto ; Mamai being the most capable and famous of these ., Jani Beg (died 1357) also called Djanibek Khan was a khan of the Golden Horde from 1342 to 1357, succeeding his father Öz Beg Khan., Russia (from the  Rus'), also officially known as the Russian Federation, is a country in Eurasia. At , Russia is the largest country in the world by surface area, covering more than one-eighth of the Earth's inhabited land area, and the ninth most populous, with over 140 million people at the end of March 2016. The European western part of the country is much more populated and urbanised than the eastern, about 77% of the population live in European Russia. Russia's capital Moscow is one of the largest cities in the world, other major urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod and Samara., Subject: nawruz beg, Relation: date_of_death, Options: (A) 1259 (B) 1282 (C) 1335 (D) 1341 (E) 1342 (F) 1357 (G) 1359 (H) 1360 (I) 1380 (J) 140 (K) 2016
1360