Energy of motion or change in position

Kinetic energy is the energy at move or at motion. The kinetic energy of objects depend on its mass (m) and its velocity (v). The mass of an object can be measured in kilograms while its mass can be measured in meters per second. The objects' energy at motion is very dependent to its mass and velocity therefore, the formula in finding the kinetic energy of an object is 

K = 1/2 x mass (m) x velocity (m/s)2

On the other hand, the kinetic energy of atoms and molecules are measured differently. It is measured through temperature.

Well technically there are two correct answers b and d. but for you its probably b in general.good day sir/ma'am : ) (i know not gender)