Answer:
option B
Explanation:
Brownian motion is the random movement of the microscopic size particle suspended in a liquid or gas.
Brownian motion is the result of the collision of the fast-moving particles.
This phenomenon was described by Robert Brown in the year 1927 i.e. it is named Brownian motion.
Brownian motion is due to the random fluctuation of the energy in the environment which leads to the zig-zag movement of the Particle.
Hence, the correct answer is option B.
