Answer: The option that corrects the pronoun usage is the second one: Replace "she" with "her".
Explanation:<u> In the sentence provided, the pronoun is functioning as the indirect objec</u>t, that is to say as the recipient of the direct object ("my only dollar"). Moreover, the indirect object is making reference to another person that is not "I"; therefore, the pronoun cannot be replaced with "me" nor "its" because "its" refers to a thing and not to a person. Furthermore, the indirect object does not make reference to a possession; therefore, "mine" cannot be used either. In that way, <u>"she" must be replaced with "her", which is an object pronoun that can receive an action and makes reference to a person (a female)</u>.