I tried this question, and arrived at 2.2*10^3, using the formula for potential energy (question below). Is there another answer that is better?

Question

A 15-kg load of groceries is lifted up from the ground to the fifth floor of an apartment building. Each floor is 5.00 m high. The potential energy of the groceries with respect to the second floor is

2.2*10^3

2.94*10^3

3.0*10^0

7.5*10^1

3.68*10^3

Answer 1

We assume that the zero level of potential energy is on the first floor. When the body is on the level of second floor, it moved up a height h = 5m. Using the formula for potential energy U = mgh and putting numeric values of all quantities, we will get

U = 15 kg·10 m/s²·5 m = 750 J = 7.5x10² J

I am afraid that somebody made a typos mistake in option (D).