Question 774Navigation General

The correct answer is D) +2s. The chronometer's rate can be calculated by the difference between the two readings at the 1200 GMT time ticks. The chronometer reading yesterday was 11h 59m 59s, and today it is 12h 00m 01s. This means the chronometer has gained 2 seconds over the 24-hour period, resulting in a chronometer rate of +2s. The other options are incorrect because -1s would mean the chronometer lost 1 second, +1s would mean the chronometer gained 1 second, and -2s would mean the chronometer lost 2 seconds, all of which do not match the given information.