It is impossible to destroy

a. motion
b. momentum
c. energy
d. mass

C.energy
The law of conservation of energy says that energy can neither be created nor destroyed.

The applicable term that fills up the problem is C. energy. This is derived for the law of conservation or the first law of thermodynamics which states that energy cannot be created nor destroyed just transformed to another state. This notion is the basis of all transformations and laws existing

250✖️100 to get you answer