This question involves the concepts of the law of conservation of energy and kinetic energy.
The variables required for a computational model that predicts change in the energy of a falling object are "B.)Height, speed, mass".
According to the law of conservation of energy the change in energy can be given in the following form for a falling object:
Loss in Potential Energy = Gain in Kinetic Energy

It is clear from the formula that the variables involved in the computational model are <u>mass, height, and velocity</u>.
Learn more about the law of conservation of energy hee:
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