Which angles in the figure are straight angles?

A. ∠SQT and ∠PTR
B. ∠STQ and ∠PTR
C. ∠STR and ∠PTQ
D. ∠QST and ∠PRT

Which angles in the figure are straight angles A SQT and PTR B STQ and PTR C STR and PTQ D QST and PRT class=