In this advertisement for employment, the answer to the big-picture question of who would most likely apply for this job is; A college student who has some free time.
A big-picture question is a question that helps us to think deeply about a matter.
A deep evaluation of this question will reveal details that will be helpful in making far-reaching decisions.
Therefore, option B is right.
Learn more about big-picture questions here:
https://brainly.com/question/1104602