Which possible topic does the above excerpt address?

jealousy
loneliness
beauty
ambition

Assuming that you're talking about the excerpt in "Subha"

The possible topic of the Excerpt is Loneliness.
The excerpt tell us about a story of Mute Girl, whose mother  could not accept her daughter's condition to the point where she lied to other people about it. The poor girl keep to face up her own trouble without having someone that could accept her as who she is. Which mean that the possible topic is loneliness

After the author's interviews at Winn-Dixie and Hearthside, she felt a sense of compassion for low-wage workers.

Explanation:

In this text, the author shows up at interviews at both Winn-Dixie and Heartside. This is done as part of her experience as a low-wage worker. At Winn-Dixie, her interview is performed by a computer, with no human interaction and very little concern for her skills. Moreover, she is asked questions that attack her personal morality, such as a urine test. At Heartside, she realizes that the interviewer is uninterested in learning more about her. These experiences cause the author to feel a sense of compassion for low-wage workers.