Which of the following sentences uses pronouns incorrectly?

they by giving their time and collecting donations.
i met her at the volunteer dinner and learned she is quite creative.
him and me worked together on our community service project.
she had more time than i to plan a project that would the elderly.

In a group discussion, which statement most clearly uses evidence to support a conclusion? a) the author makes some good points, but i feel that he’s ultimately biased. b) the author proves that he’s biased when he uses terms like “silly” and “stupid”. c) the author obviously hates the way fast food tastes, which is why he’s negative. d) the author first criticizes fast food, and then goes in to criticize junk food.