Given that ∠MQL = 180° and ∠XQR = 180°, which equation could be used to solve problems involving the relationships between ∠XQL and ∠MQR?
A) (48 + 1b) = (54 − 1b)
B) (48 + 1b) + (54 − 1b) = 180
C) (54 − 1b) − (48 + 1b) = 180
D) (54 − 1b) − 180 = (48 + 1b)
