Answer:
The answer to your question is the letter C.
Explanation:
-The first choice is incorrect because 1 and 3 are not vertical angles. Vertical angles share the same vertex.
- The second choice is incorrect because angles 2 and 3 are not vertical angles.
- The third choice is correct, angles 1 and 2 are vertical angles, they have the same vertex.
- The last choice makes no sense.