Author Melinda Jackson and supporting research show that the factor which most determines how a person will vote is:

a. The candidate's character.

b. Party identification.

c. The amount of media the voter sees.

d. Age

Option A

Explanation:

Candidate's character is the most important attribute of a candidates, people what a reliable leader, a leader that understands and does the interest of his/her people or followers. In other words, they also want someone that keeps to his words.

In general, i am linking the candidates character to good attributes of a leader before people vote, people dont just look at the party, they look at the individual, they look at his past and try to examine the kind of person he/she his. This character is a defining factor for any candidates who wish to be voted for, is such candidates truthful and to his words is the questions voters will ask relating there interests.