Выберите правильный вариант предложения:
a)what is Yury Gagarin nationality?
b)what is Yury's Gagarin nationality?
c) what is Yurys' Gagarins' nationality?
d)what is Yury's Gagarin's nationality?
e)what is Yury Gagarin's nationality?
С объяснением пожалуйста