Drafting legislation to law enforcement agencies track down terrorists took time because congress struggled over how to balance americans' amendment protections from unreasonable search and seizure with the increased need for security.

c. is the answer : ) (you may punch me if im wrong lol)

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.