I’m pretty sure its 21 cause 9+10 is 21
<span>the profit you make when you sell a house.
the actual definition describes any type of profit, not just real estate.</span>
The correct answer for the given statement above would be option A. She will have been. The pronoun "she" is in the singular, third person. Other pronouns that are singular, third person include he, and it. And "will have been" is the conjugation of the verb "to be" in the future perfect tense.