The Nurse Is Administering Medications to a Patient with High

The nurse is administering medications to a patient with high blood pressure. The patient states, "This pill made me so sick yesterday. Are you sure I have to take it now?" The nurse should:

A) give the medication because no one gets sick on this pill.
B) hold the medication and check the order since there may be a lack of information.
C) give the medication since he/she is the nurse and knows what should be done.
D) give the medication since the nurse did not see the doctor come so the order is valid.