单选题At 0630 you increase speed to 12.0 knots. At 0645 Race Rock Light bears 294°pgc. At 0700 Race Rock Light bears 293°pgc. Based on this，you should（）.Aalter course to portBmaintain course and speedCalter course to starboardDmaintain course and reduce speed
单选题
At 0630 you increase speed to 12.0 knots. At 0645 Race Rock Light bears 294°pgc. At 0700 Race Rock Light bears 293°pgc. Based on this，you should（）.
A
alter course to port
B
maintain course and speed
C
alter course to starboard
D
maintain course and reduce speed
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