Which equation can be solved to find the value of y in this diagram?

On the far left side is 116 degrees, the middle is 30 degrees, and the Far right side is ___.
What is the correct answer?
A. y + 116 + 30 = 180
B. y - 116 - 30 = 360
C. y + 116 + 30 = 360
D. y - 116 - 30 = 180