The correct options are
A Economic
B Social
D Political
The scenario described above is not unlike how newspapers run columns to provide important historical information to readers. They includes economic, social, and political events of historical significance. Many newspapers have a column called 'On This Day' to provide information associated with that date. Many experts with knowledge in history write these articles. Similarly, in the context of the scenario described, one would primarily focus on the economic, social, and political aspects to begin providing a comprehensive understanding of the timeline of the Mauryan Empire, prior to moving on to other elements from the time.