The Figure Above Shows the U

The figure above shows the U.S. market for T-shirts, where SUS is the domestic supply curve and DUS is the domestic demand curve. The world price of a T-shirt is $5. The U.S. government imposes a $2 per unit tariff on imported T-shirts.
-The figure above shows that as a result of the tariff,the quantity of T-shirts produced in the United States ________,and the quantity of T-shirts imported ________.

A) increases by 15 million per year; decreases by 30 million per year
B) increases by 15 million per year; increases by 15 million per year
C) decreases by 15 million per year; decreases by 30 million per year
D) decreases by 30 million per year; increases by 30 million per year
E) does not change; decreases by 15 million per year