Question 116Navigation Problems

The correct answer is C) 21°32.0'N. To arrive at this answer, we need to calculate the latitude at meridian transit using the information provided in the problem. The key steps are: 1. Calculate the true altitude of the Sun's lower limb using the observed sextant altitude, index error, and height of eye. 2. Use the true altitude and the chronometer time to determine the latitude at meridian transit. The calculations show that the latitude at meridian transit is 21°32.0'N. The other answer choices are incorrect because they do not match the result obtained through the proper application of nautical astronomy principles.