Angle 2 and angle 11 are alternate exterior angles. Line G and line L are parallel lines. Think of them as train tracks. On the outside or exterior of the train tracks is angle 2 and angle 11.
Angle 2 is on the right side of the transversal line, while angle 11 is on the left side of the transversal line.
So this is why they are alternate exterior angles. Because line G and line L are parallel lines, this means the alternate exterior angles are congruent (by the alternate exterior angle theorem).
Since angle 2 is 115 degrees, angle 11 must also be 115 degrees
Answer: C) 115