Scenario #1: Congress passes a tax increase on the wealthy and the president vetoes it, this is an example of A. Executive Branch checking the Judicial
B. Judicial Branch checking the Executive
C. Executive Branch checking the Legislative
D. Legislative checking the Executive

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.