Explanation
The correct answer is C: February 29, 2020
Leap day occurs every 4 years to keep our calendar in alignment with the Earth's revolution around the sun. However, leap day is skipped in years that are divisible by 100 but not divisible by 400.
For example, the year 1900 was not a leap year, but the year 2000 was a leap year. This rule ensures that the calendar year is almost always 365 days long, with some exceptions to keep it as accurate as possible.
