Question

caesar was also the first to have a \leap day\ every four years. what is a \leap day\?
a the shortest day of the year
b the day after new years day
c an extra day that helps to keep the calendar correct
d a weekend day used by farmers to plant more crops

Explanation:

A leap - day is an extra day added to the calendar to keep it synchronized with the astronomical year. The Earth's orbit around the Sun takes approximately 365.24219 days. To account for the extra fraction of a day, an extra day (February 29th) is added every four years in the Gregorian calendar.

Answer:

C. an extra day that helps to keep the calendar correct