The correct answer is A) Worship of a group of gods understood to live on Mount Olympus.
By the classical era, Greek religion focused on worshiping of a group of gods understood to live on Mount Olympus.
Ancient Greece had one of the most interesting Pantheons in ancient history. Pantheons understood as the series of gods this civilization worshiped. Indeed, Greek literature is full of stories about the difficult "good-bad" relationship that humans had with the gods that lived on Mount Olympus, as we can read in classical Greek literature such as the "Illiad" and "the "Odyssey," written by Homer.
Among the most important Greek Gods were Zeus, Poseidon, Athena, Apollo, Ermes, and Aphrodite.
