10 point! Please Help! Not B, I already tried.

Which relationship is always correct for the angles p, q, and r of triangle ABC?

A p + r = q
B p + q + r = 180 degrees
C p + q + r = 90 degrees
D q + r = p

10 point Please Help Not B I already tried Which relationship is always correct for the angles p q and r of triangle ABC A p r q B p q r 180 degrees C p q r 90 class=