At about GMT 1436, on 3 December 1981, the lower limb of the Moon is observed with a sextant having an index error of 2.5' on the arc. The height of eye is 32 feet. The sextant altitude (hs) is 3°38.8'. What is the observed altitude?

A
Ho 4°18.6'
B
Ho 4°29.1'
C
Ho 4°36.3'
D
Ho 4°42.2'
E