Match the followings:
| A. Stage 1 | I. Greatest muscle relaxation |
| B. Stage 2 | II. Drop in body temperature |
| C. Stage 3 | III. Slow eye movements |
| D. REM Sleep | IV. High brain activity and muscle atonia |
1
A-II, B-III, C-I, D-IV
2
A-III, B-II, C-I, D-IV
3
A-II, B-I, C-III, D-IV
4
A-IV, B-III, C-II, D-I