The correct answer is A) Many Gods
The Romans believed in many gods, at the start of the Roman civilization, Romans believed in spirits that inhabited everything. Later they developed gods such as Mars (god of war and father of the founders of Rome), Jupiter (supreme god), Neptune (god of sea), Pluto (god of underworld), Cupid (God of Love), Pax (God of peace), Nemesis (god of revenge) and many others.
Later, when the Roman Empire expanded, they reached Greece and due to the presence of Greek colonies Romans adopted Greek Gods, this added human traits to their Roman Gods such as love, hate, etc.