All the Following Statements Are True

Multiple Choice

All the following statements are true.Which one explains why mean solar time differs from apparent solar time?

A) The length of a solar day is not always exactly 24 hours.
B) Earth's rotation period is actually about 23 hours 56 minutes,not 24 hours.
C) Earth's axis precesses with a period of 26,000 years.
D) The Sun reaches the meridian at different times at different longitudes within the same time zone.
E) The path of the Sun through the sky depends on both latitude and date.