Answer:
A.
Explanation:
I would say A. Choice D is wrong because they are not corresponding angles. Choice B is wrong because they are also not same-side interior angles. Out of A and C, I would choose A because they are alternate interior angles.
first option
∠CAD ≅ ∠ACB from the diagram and because they are alternate interior angles, AD || BC because of the Converse of the Interior Angles Theorem.
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