Question

The sleep stage at which muscles begin to contract and relax is __________. A. Stage 1b. Stage 2c. Stage 3d. Stage 4 please select the best answer from the choices providedabcd.

Answer 1

Answer:

Either stage 3 or stage 2

Explanation:

i read it before it cant be stage 4 because your muscles have already been contracted and relaxed they don't begin