The correct answer should be <span>All of the fruit looks ripe.
This is because fruit can be used as a collective noun meaning that it is a SINGLE group consisting of many numbers. In this case it takes and behaves grammatically as a singular form. In addition, "look" is written with the "-s" inflection meaning that fruit is indeed singular and the third person.</span>
Generally speaking, A. Third person omniscient often provides insight into the character's mind, giving the reader the character's motives and/or feelings.
