Which One of the Following Statements Is True About the Equinoxes

Multiple Choice

Which one of the following statements is true about the equinoxes?

A) They occur in June and December.
B) The Sun's vertical rays are striking either the Tropic of Cancer or the Tropic of Capricorn.
C) Days and nights are equal in length everywhere.
D) The length of daylight at the Arctic and Antarctic Circles is 24 hours.