127 In order to check your compasses, you sight North Dumpling Island Light in line with Latimer Reef Light bearing 077°pgc. The helmsman was steering 307°pgc and 320° per standard magnetic compass at the time. Which statement is TRUE?

A. The gyro error by observation is 2°E.
B. The deviation based on the observation is 15°W.
C. The magnetic compass error is 14°W.
D. The true line of the range is 079°.