Brock bought his principal residence for $185,000 on June 5, 2018. He sold it on July 18, 2019, for $215,000. Assuming no adjustments to basis, what is the amount and character of Brock's gain?

A. Long-term, ordinary gain of $30,000.

B. Long-term, capital gain of $30,000.

C. Short-term, ordinary gain of $30,000.

D. Short-term, capital gain of $30,000.