Ill give a brainliest

Hello! Here is your answer!                                                                                      E is on the x-axis, and no other numbers are reflected so Im guessing C? Plz mark as brainliest if correct, thanks!

step-by-step explanation:

∆abc has the points a(1, 7), b(-2, 2), and c(4, 2) as its vertices. formed with the point d(1, 2) as its third vertex, then ∆abd is triangle.

i belive those are the ones that are under 90 degreese.