Vernal equinox of northern hemisphere in March marks season of __________ ?

A. Spring
B. Summer
C. Winter
D. Autumn

In the northern hemisphere, the vernal equinox (March) conventionally marks the beginning of spring in most cultures and is considered the start of the New Year in the Assyrian calendar, Hindu, and the Persian or Iranian calendars, while the autumnal equinox (September) marks the beginning of autumn.