What did President Ford consider the country’s greatest economic policy challenge?
a.) inflation
b.) stagnation
c.) recession
d.) unemployment

I know that inflation and unemployment were big ones but I am not sure which one is the correct answer.

A. inflation

Explanation:

Much of Ford's focus in domestic policy was on the economy, which experienced a recession during his tenure. After initially promoting a tax increase designed to combat inflation, Ford championed a tax cut designed to rejuvenate the economy, and he signed two tax reduction acts into law

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make 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.