During the presidential election process, what occurs in the period from January through June of the year of a presidential election?

a. Primary elections are held in each state to determine the number of delegates each candidate will be allowed to send to the nominating convention.

b. The nationwide vote is held and the next president is chosen.

c. The candidates declare their intention to seek the office of president.

d. The electoral college meets to cast their formal votes.

e. All campaign funds are required to be expended.