A Patient Is Postoperative and Was Prescribed Morphine Intravenously Using

A patient is postoperative and was prescribed morphine intravenously using a patient-controlled analgesic pump.Which of the following side effects related to the respiratory system may occur?

A) May induce an increase in ventilation.
B) May block Beta₂ stimulation resulting in bronchospasm.
C) May increase tidal volume and respiratory rate.
D) May depress the central nervous system leading to respiratory depression.