Which is the best decision regarding the underlined portion of sentence 3 (reproduced below)?
Family, injustice, being African American and female were Clifton's enduring themes.

Using “and being” creates effective parallelism and clarifies what the writer means by “Clifton’s enduring themes”: “family,” “injustice,” and “being African American and female.” The other choices are incorrect because using “being” or “and the subjects of” or deleting the underlined portion entirely results in faulty parallelism.