What happened to Alexander the greats empire after he died ?

AAll the territory he gained was quickly recovered by Persia
BGreek city states quickly rebelled, pushing his armies out of Greece
CIt was divided between three of his generals
DHis son king Phillip became ruler of the empire

Verified Answer :

After Alexander's death his Empire was divided among his four generals (known in Latin as the Diadochi, the name by which they are still referenced, from the Greek, Diadokhoi, meaning "successors"): Lysimachus, Cassander, Ptolemy and Seleucus.