The relationship for determining the change in gravitational potential energy of an object is $\Delta E_p = Y \times Z \times \Delta h$, with $\Delta E_p$ representing the change in gravitational energy and $\Delta h$ representing the change in height. Which row identifies the quantities $Y$ and $Z$?
- A$Y$: mass; $Z$: gravitational field strength
- B$Y$: gravitational field strength; $Z$: density
- C$Y$: density; $Z$: speed
- D$Y$: speed; $Z$: mass