This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to heal fast after a surgery
Rest for the first few days after your operation.
It is normal to feel extremely tired following a surgery, especially if you had a major operation or a general anesthetic. Spend time in bed and do only as much as you feel up to doing during these first few days.

Choose your answer from:
[A]. You should take note of how you feel during the day, and if you feel limber, so does your doctor. You don't need to have a full workout before a surgery, just give it your all.;
[B]. Pushing yourself too early may be detrimental to your recovery. Avoid any heavy lifting or rigorous exercise during this time.;
[C]. Rest for several days, then begin strength training. Some surgeons recommend taking at least 150 minutes of heavy activity per day to gradually rebuild muscles and keep blood flowing.;
[D]. When these initial resting periods are over, it is okay to resume your normal lifestyle. Keep your doctor accountable for your recovery.;
The answer is:
[B].