Ineed with a history question i posted!

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.

declare war, appoint military officers, sign treaties, make alliances

there are many answers to this question, such as a diplomat, ambassador, soldier, united nations employee, cia, etc.

i believe that d is the right answer