The word you get is Trade I just took the test. <3
I think it is A. People began using tools
From my Knowledge,
If the head of the executive branch e.g. (The President) were subjected to a subpoena, then they have the right to claim executive privilege to withhold information from the other branches.
The correct option is B
B. The legislative branch took the lead and had the most power.
Most of the federal powers were vested on congress, and the evolution of the modern presidency with a powerful executive, is believed to have begun with FDR.