Which period is known for olive branches, wreaths, and the cornucopia?

Ancient Greek period

Explained: The olive branch is a symbol of peace or victory allegedly deriving from the customs of ancient Greece, particularly regarding supplication to both the gods and persons in power and is found in most cultures of the Mediterranean basin.[1] It became associated with peace in modern Europe and is also used in the Arab world. Despite claims of Ancient Greek origins, the symbol first appears in Ancient Egypt as a symbol of peace many centuries before appearing in ancient Greek mythology.

The answer to the question is c.