When hoisting a boat on gravity type davits using an electric motor driven winch，the davit arms should be brought up（）.
- Ato their final position with the winch operating at slow speed
- Bto the bar stop，and then hand cranked to their final position
- Cuntil just before they make contact with the limit switch，and then hand cranked to their final position
- Dto the embarkation deck，and then hand cranked to their final positio