After teaching a patient who is scheduled for magnetic resonance imaging (MRI), the nurse assesses the client's understanding. Which statement indicates client understanding of the teaching?
a. "I must increase my fluids because of the dye used for the MRI."
b. "My urine will be radioactive so I should not share a bathroom."
c. "My gag reflex will be tested before I can eat or drink anything."
d. "I can return to my usual activities immediately after the MRI."