Historians divide a particular duration of time with a distinct start and end date into:

A. a period.

B. an epoch.

C. a century.

D. a decade.

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

this is a good question! i'll do some research and come back when i have the answer!

the answer is d because for c the actors can't love acting for the other's audience their not even in the same show, it can't be b either because the question is talking about the actors not the audience, and it can't be a because   it's not specific enough