Multiply the weight by gravity ( 9.81) and then by the distance:
A) 100 * 9.81 * 2.25 = 2207.25 = 2.2 x 10^3
B) 150 * 9.81 * 1.76 = 2589.84 = 2.6 x 10^3
C) 200 * 9.81 * 1.50 = 2943 = = 2.9 x 10^3 ( Can round to 3.0 x 10^3
D) = 275 * 9.81 * 1.25 = 3372.18 = 3.4 x 10^3
The answer should be C.