(A): The toothpaste neutralized the acid produced by fermentation of food particles in the mouth. (R): Toothpaste is alkaline in nature A and R are true and R is the correct explanation of A.
A and R are true but R is not the correct explanation of A.
A is true but R is false.
A is false and R is true

explanation:

to push or pull an object in a certain direction is known as force. a force in moving an object from one place to another.

force depends on the mass of an object. so, more is the mass of an object more will be the force required to move the object.

thus, we can conclude that the use of force to move an object is push or pull.