Land Was Originally Purchased for $20,000

Land was originally purchased for $20,000. It is sold for $20,000 in cash. How does the sale affect the accounting equation?

A) Assets increase by $20,000; liabilities decrease by $20,000.
B) Assets increase by $20,000; liabilities increase by $20,000.
C) Assets increase by $20,000; equity increases by $20,000.
D) Assets increase by $20,000; assets decrease by $20,000.