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The answer is: the cultural concept of marriage
The Iranian concept of Sharm involves an internal and external behavior, related with the cultural concept of marriage, in eastern culture this word has a broad meaning, in this case for Iranian culture this is the significance.
The answer should be c because the Gods were taken seriously by all Greeks regardless of age. For the answer a consider Hercules, son of Zeus and a human. For b there are many stories that talk about fallen heroes. And for d there were multiple gods, just consider the 9 planet's are named after just some of them.