Answer:
B.

Explanation:
We have been given an image of two parallel lines intersected by a transversal. We are asked to find, which another angle will have measure of
.
We know that alternate interior angles formed by a transversal by intersecting two parallel lines are equal.
Upon looking at our given image, we can see that angle that measures
and
are inside parallel lines and on the opposite sides of transversal, so,
angle and
are alternate interior angles.
Therefore, by alternate interior angles theorem,
is the other angle equal to
and option B is the correct choice.