The Brownian motion explained by Albert Einstein is based on________.

Assertion : Brownian Motion explained by Albert Einstein is based on Kinetic theory. Reason : Brownian motion proves the reality of atoms of molecules.

(I) The Brownian motion is explained by Albert Einstein based on Newton's law of cooling. (II) Brownian Motion proves the reality of atoms and molecules. Which one is correct statement?

Brownian motion is a/an

Brownian motion is a/an

The Brownian motion is due to:

The Brownian motion is due to