What percentage of Earth’s surface is covered by snow either permanently or temporarily?

I work best on a deadline so I start projects close to their due date.

A.) 12%

A.) 12%

I work on the tasks that I enjoy most first.

B.) 23%

B.) 23%

I work on the tasks that I enjoy most first.

C.) 27%

C.) 27%

I work on the tasks that I enjoy most first.

D.) 33%

D.) 33%