Answer:
C.200 years
Step-by-step explanation:
Alexander the Great died in 323 B.C. In 200 B.C., the Roman Republic began its expansion into the Mediterranean world. Initially, the Romans conquered the southern Italian peninsula and gradually expanded their territories to the east, including Greece. Therefore, the Romans marched into Greece about 200 years after Alexander's death. It is worth noting that the Roman conquest of Greece did not occur all at once, but rather in stages, with the Romans gradually taking over the various Greek city-states over a period of several decades.