Who Has A Test Today But If Yall Don't Then Yall Can Still Talk To Me If You Want You Don't Have To If You Don't. Plz Don't Report Me.

Answerfrom the mid 19th century to the 20th and on : )

The options for this question is 
a.) a private building used for religious purposes
b.) a stadium used for athletic events, chariot racing, and acrobatics
c.) a central building surrounded by religious and governmental buildings
d.) an open space in a town used as a central gathering place or event