A position on the Earth has a longitude of 74°10'E. Its celestial counterpart would have a __________.

Correct Answer: Option B — GHA of 285°50'

Longitude is converted to celestial coordinates by relating it to the Prime Meridian. A longitude of 74°10'E corresponds to a GHA of 360° minus 74°10', resulting in 285°50'. This conversion is essential for calculating the Local Hour Angle (LHA) of celestial bodies during sight reduction processes in navigation.