Answer: As long as she is able to do so, only Mrs. Nunez can sign her enrollment form. Mrs. Nunez will have to wake up to sign her form or do so at another time.
Step-by-step explanation:
Following the information given in the question, since Mr. Nunez says that he wants to enroll both himself and his wife, as long as she is able to do so, only Mrs. Nunez can sign her enrollment form. Mrs. Nunez will have to wake up to sign her form or do so at another time.
It should be noted that it's not appropriate for Mr Nunez to sign the enrollment form for her wife. The wife should be the one doing so in order to in order to make sure that she agrees to the terms of the form and her signature will officially make it enforceable.