On 29 June 1981 you observe a back sight of the lower limb of the Moon as seen through the sextant's scope. The sextant altitude (hs) is 114°16.9'. The height of eye is 36 feet, and the index error is 2.0' off the arc. The horizontal parallax is 60.5'. What is the observed altitude (Ho)?

A
66°23.8'
B
66°04.4'
C
66°00.4'
D
65°53.8'
E