Please Help!! What is the next step in the proof? Choose the most logical approach.
A.
Statement: ∠1 ≅ ∠8 and ∠2 ≅ ∠7
Reason: Congruent Supplements Theorem
B.
Statement: m∠3 + m∠4 = 180° and m∠7 + m∠8 = 180°
Reason: Linear Pair Theorem
C.
Statement: m∠3 + m∠5 = 180° and m∠4 + m∠6 = 180°
Reason: definition of supplementary angles
D.
Statement: ∠7 ≅ ∠6 and ∠8 ≅ ∠5
Reason: Vertical Angles Theorem
