C) understanding a friend's problems and providing support
Answer:
you need to earn a doctoral degree
Explanation:
For the most part, you need a Master of Science in Nursing, or MSN, to become an advanced practice nurse. Depending on the exact nature of the work you wish to do, you may even choose to earn a doctoral degree, which those who wish to become Clinical Nurse Specialists often do.
It increases the efficiency with which the body delivers oxygen and nutrients to its cells, is the correct answer.
Hope I helped !
