Answer: Choice B
g = 3 and h = 5
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Step-by-step explanation:
The line y = 2 is horizontal.
Reflecting any (x,y) point over a horizontal mirror line will keep the same x coordinate, but the y coordinate will change (unless the point is on the mirror line itself).
The point P(g, -1) has y coordinate -1. The gap from y = -1 to y = 2 is 3 units.
So we move 3 units up to go from P(g, -1) to the point (g, 2) on the mirror line y = 2. Then we move another 3 units up to arrive at point Q(3,h) aka the location (g, 5)
Comparing (3,h) and (g,5) shows that g = 3 and h = 5