The correct answer among all the other choices is B. subject. This describes how the underlined pronoun, she, is used in the sentence. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
"Play means activity for fun or a dramatic performance. An example of play is building a house with blocks. An example of play is a performance of Shakespeare's Macbeth. To participate in the game indicated."
