Suppose that ∠ABC and ∠DEF are both supplementary to ∠XYZ, and ∠XYZ is a right angle. Name all of the remaining right angles. A. Both ∠ABC and ∠DEF are right angles.
B. Only ∠ABC is a right angle
C. Only ∠DEF is a right angle.
D. Neither ∠ABC nor ∠DEF is a right angle.