The next question uses the same picture but different variables. I'll use the same variables as the above picture for convenience.

Angle a is 30 degrees. Angles b is 150 degrees.

1. (x + y)(degree symbol out here)

2. (Angle symbol) a degrees + (angle symbol) b degrees.

A. The quantity in choice 1 is greater.

B. The quantity in choice 2 is greater.

C. The two quantities are equal.

D. The relationship cannot be determined.

I'm pretty sure the second cannot be determined since it doesn't say that the lines are straight. I'd like a second opinion though.