Why would a possible candidate for president form an exploratory committee?
to see how much support he or she can expect
o to announce his or her candidacy
o
to investigate possible running mates
o to discover independent voters in his or her home state

to see how much support he or she can expect

Explanation:

In United States election policy, exploratory committee’s role is established in order to determine if a potential candidate should stand for election. They are most often mentioned in relation to US presidential candidates prior to the announcement of the campaign and primaries.

pennsylvania, new hampshire, massachusetts, connecticut and rhode island .