The path of a celestial body during its daily apparent revolution around the Earth is called its __________.

Correct Answer: Option A — diurnal circle

The diurnal circle is the apparent path a celestial body traces across the sky over 24 hours due to the Earth's rotation. For a navigator, understanding this path is essential for predicting the altitude and azimuth of a body throughout the day, as explained in the Nautical Almanac.