Although Historians Believe That Early Accounts of Alexander's Life by Plutarch

Although historians believe that early accounts of Alexander's life by Plutarch and Arrian are reliable,they also find them problematic because they:

A) were written four hundred years after Alexander lived.
B) were written by Greek historians who did not appreciate Alexander's genius.
C) were written by Alexander's enemies.
D) were based on Persian accounts of Alexander's feats.
E) only survive today in fragmentary form.