What factors account for the relative political and social fragmentation of Europe?

Y i was watching bleech earlier and like goku is the best hokage ever

According to binet, mental age relates to chronological age because a. they are the same thing b. mental age involves calculating the chronological age at which a person functions c. chronological age involves calculating how a person is mentally functioning d. they are opposites 38

Identify one similarity between china and europe that explains their decisions on wether to explore or conquer lands around the indian ocean