Forty-five fathoms is marked on the anchor chain by（）.
- Aone turn of wire on the first stud from each side of the detachable link
- Btwo turns of wire on the second stud from each side of the detachable link
- Cthree turns of wire on the third stud from each side of the detachable link
- Dfour turns of wire on the fourth stud from each side of the detachable link