What is the definition of physics?

A)the larger SI unit of measuring force, equal to the force necessary to accelerate 1 kilogram at the rate of 1 meter per second squared
B)the study of the natural world and its laws
C)having to do with another, such as position or size
D)the application of energy to an object in order to move it
E)the movement of an object from one place to another

B)the study of the natural world and its laws