The correct answer is: a) moving
Kinetic energy is the energy that an object possesses due to its motion. According to the physics definition of kinetic energy, any object that is moving has kinetic energy, regardless of its state of elevation or position. For instance, a car driving down the road, a ball rolling down a hill, or even a person running have kinetic energy because they are in motion.
Options like b) falling and d) at an elevated position are interesting but do not encompass the full definition of kinetic energy. An object can fall (and thus have kinetic energy) only because it is moving downwards. Being at rest (c) means that the object is not moving, hence it cannot have kinetic energy. Finally, option e) none of these is also incorrect, as the answer clearly points to the movement of the object.