Answer: B
Explanation:
The triangle is in the third quadrant and after it's reflection over the x axis it will end up in the second quadrant. Which it's x coordinate is negative and its y coordinate is positive.
The first ordered pairs are not in the solution because the triangle doesn't end up in the first quadrant.
The second seems to be the solution because its x coordinates are all negative and its y coordinate are all positive.
(7,-2) → (-7,2)
(-2,-2) → (-2,2)
(6,-7) → ( -6,7)