Rushawn lined up the interior angles of the triangle along line p below. Triangle A B C. Angles A, B, and C are shown on line p.

When the measure of angle C decreases, what happens to the measures of angles A and B on line p?
Both sections increase.
Both sections decrease.
One section increases, and the other section decreases.
What will happen to the individual sections cannot be determined, but the size of the two sections together increases.