This is an example of A. Assimilation. In this case Moishe is taking on a common name of the local community/culture in which his family has migrated into. By choosing a common name he will "blend in" with the other children. To assimilate, means to replicate or copy.
Unionization, cronyism and maturation are not appropriate to this situation.
Las motocicletas tienen dos ruedas. (Sorry I didn't know what the question was)
Answer:
They have 3
Explanation:
ATP is a nucleotide consisting of an adenine base attached to a ribose sugar, which is attached to three phosphate groups
Hope this helps (: