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

the doctrine of nullification recommended that states living inside the union have the one-sided, inalienable ideal to void any law made by the national government that could be esteemed illegal.

the united states was shaped based on a general agreement among its individual states. hence, it is inferred that under the hypothesis of invalidation, since the states are the establishment of the union, they have the ability to referee and disprove unlawful laws.