When National Simplicity Day is celebrated?

When National Simplicity Day is celebrated?

A. 10 July

B. 11 July

C. 12 July

D. 13 July

Explanation:

National Simplicity Day is celebrated on July 12 each year to honour Henry David Thoreau who advocates the life of simplicity. Henry David Thoreau was an American author, an environmentalist, philosopher, naturalist, poet, historian, surveyor, and transcendentalist.