PLS HELP ME!!!!!!!!!!!!!!

Two vertices of a right triangle have coordinates (3, 7) and (3, 10) . The segment that connects these points is a leg of the triangle.

Which set of coordinates for the third vertex would create a right triangle? Explain how you got your answer.


​ (4, 8) ​

​ (7, 8) ​

​ (8, 7) ​

​ (4, 4) ​

I THINK it's B. or C.