IS Δ ABC WITH VERTICES A(-2, -5), B(-3, 2) AND C(1, -2) A RIGHT TRIANGLE?

A.) Δ ABC IS NOT A RIGHT TRIANGLE.
B.) Δ ABC IS A RIGHT TRIANGLE BECAUSE AB ⊥ AC
C.) Δ ABC IS A RIGHT TRIANGLE BECAUSE BC ⊥ AC
D.) Δ ABC IS A RIGHT TRIANGLE BECAUSE AB ⊥ BC