Which Statement About the Use of Morphine to Relieve Surgical

Which statement about the use of morphine to relieve surgical pain is true?

A) Although morphine is addictive, the risk of addiction when it is used to relieve surgical pain is estimated to be less than 1%.
B) Because morphine is highly addictive, it is not generally prescribed to manage severe pain.
C) Morphine relieves surgical pain by binding to endogenous cannabinoid receptors.
D) Over-the-counter medications are just as effective as morphine for treating severe pain.