Answer the following question given this paragraph: 

All forms of energy can be interconverted. Three things can change the energy of an object: the transfer of heat, work performed on or by an object, or some combination of heat and work.


Q: All forms of energy can be interconverted. three things can change the energy of an object: the transfer of heat, work performed on or by an object, or some combination of what?

 Choices:

- temperature and work

- humidity and work

- cold and energy

- heat and work

A:
heat and work
