As the temperature of a substance approaches absolute zero, the random motion of the molecules

decreases
increases
remains the same

 Decreases

Explanation:
By definition, absolute zero temperature defines the temperature at which the atoms of a material no longer transmit thermal energy.

Engineering materials can transmit thermal energy at higher temperatures by random molecular motion.
It follows that as the temperature decreases toward absolute zero, random molecular motion decreases.

The answer is  a.first and third quarters