Answer: B) Madison was chosen by her teacher to represent her class.
Explanation: a sentence is in active voice when the subject is the person or thing that performs the action of the verb. A sentence is in passive voice when the subject undergoes the action of the verb. From the given options, the sentence that represents an example of passive voice, is the corresponding to option B: Madison was chosen by her teacher to represent her classs, because the subject of the sentence is "Madison" but the person that performs the action is "her teacher" (she choses Madison).
