What is the best description of the context for this statement by harry truman?

The political, economic, or cultural environment that surrounds an event provides the event with its

Montezuma was taken prisoner by the spanish and held captive for months while the spanish ransacked the city of tenochtitlan. what was the fate of montezuma? a he escaped only to be cut down in battle. b he reasoned with the spanish and got them to leave the city. c he died of old age while in the custody of cortes. d he was struck with stones trying to plead for peace with his people and it is reported he died a few days later.

The largest formal unit of geologic time is