Which accurately describes the Roman Forum?

A. The basement of the Roman Colosseum where gladiators, prisoners, and live animals like tigers and lions were kept

B. A large building with concrete columns, arches, and domes used to worship Roman gods such as Jupiter, Apollo, and Venus

C. An open space surrounded by buildings, temples, and shops used for people to gather, talk, and buy and sell things

D. The floor of the Senate building where elected officials, usually rich landowners, debated issues such as war and taxes