Which instruction is most important to teach a patient prescribed to take alendronate (Fosamax), 10 mg daily? A. “Be sure to rotate injection sites every week.” B. “Be sure to take the drug 1 hour...

Which instruction is most important to teach a patient prescribed to take alendronate (Fosamax), 10 mg daily?

A. “Be sure to rotate injection sites every week.”

B. “Be sure to take the drug 1 hour before or at least 2 hours after a meal.”

C. “Report any headaches you experience to your prescribed immediately.”

D. “Remain in the upright position for at least 30 minutes after taking the drug.”