If you answer the question can you please say 18-, 19-, 20-, then answer the question. Pease and thank you!

to extend a country’s power and influence

the answer is a. the harappan civilisation is also called the indus valley civilisation, this is because they built their cities along the indus river. the reason behind this location can be found in the rest of the "old world" civilisations like mesopotamia or egypt, the first built their cities along the rivers tigris and euphrates, the second along the nil; : their respective civilisations thrived because the overflowing of their respective rivers produced favorable conditions for agriculture, their main support.

using the media to encourage public support for an idea.

encouraging congress to take action

establishing a public policy goal for the nation