What is the missing step in this proof?A.Statement: 24 25, and 21 23.Reason: Alternate Interior Angles TheoremB.Statement: DÈ is parallel to AC.Reason: AB is a transversal cutting De and AC.C.Statement: 2124, and 23 25.Reason: Alternate Interior Angles TheoremD.Statement: 2124, and 23 25.Reason: 21 and 24, and 23 and 25 are pairs of supplementary angles.