How do the republican candidate and the democratic candidate get chosen to run for presidential office? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. they are chosen by the house of representatives. d. each is chosen by the governor of his/her home state.

B. Each is nominated by his or her respective party

Explanation:

Part of the reason parties exist is to endorse a single candidate by the time elections draw near. There are primaries in which democrats or republicans can each vote for which of the available candidates in their party they want to face the chosen candidate of the opposing party.

the answer is a) to be able to obey them.