How do themes differ from periods as tools for understanding history? O A. A period examines how societies have changed over time, while a
theme does not.
B. A period is an objective set of facts, while a theme can be
interpreted in many ways.
O C. A period focuses on broad ideas, while a theme focuses on people
and events.
O D. A period covers only a specific time frame, while a theme repeats
throughout history.