Answer:
Option C i.e. Alternate Interior is correct.
Explanation:
From the figure, it is clear that the two parallel lines, let say l and m, are cut by a traversal.
In other words,
if
║
, then ∠x ≅ ∠y
In our case, x and y are alternate interior angles.
Thus, the two parallel lines, let say l and m, are cut by a traversal, making the alternate interior angles x and y.
Please note that the alternate interior angles x and y are congruent.
Hence, option C i.e. Alternate Interior is correct.