Greek mythology was based on: a monotheism b christianity c matriarchy d polytheism

D. Polytheism

Explanation:

Greek empires are age old civilisation, they are profound in many art and scientific fields. Their mythology is based on polytheism principle which have twelve major Olympian gods and goddesses. Ancient Greeks performed many beliefs, rituals and cult practices among their own practices. They perform many black magic rituals during their period. During the Roman empire, many mysteric religion widespread across the kingdom.  

primary groups shape your individual development

explanation:

answer called a epicycle;