What does the Vernal Equinox signify in terms of day and night?

The Vernal Equinox marks a significant point in the Earth's orbit around the Sun, occurring around March 20 or 21 each year in the Northern Hemisphere. On this day, the tilt of the Earth's axis is such that the Sun is directly above the Equator, resulting in almost equal lengths of day and night across the globe. This phenomenon occurs because the Sun rises approximately in the east and sets approximately in the west, leading to balanced daylight and nighttime durations.

Thus, the correct answer indicates that during the Vernal Equinox, day and night are approximately the same length, highlighting the unique celestial alignment that occurs at this time.