Pledging to vote can help a candidate all of the following ways EXCEPT:

Pledging to vote for a candidate would be only positive for this candidate: so we have to choose an option that would not be a positive outcome for this candidate.

Such an option is "making the candidate appear weaker" and indeed, pledging to vote for a candidate would not make this candidate appear weaker.  (answer B)

Explanation:

b

make me

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."