Answer: Option (d) is the correct answer.
Explanation:
Viscosity is defined as the ability of a fluid to resist its flow. That is, more thicker a fluid is less likely it is able to flow with ease.
For example, viscosity of honey is high as compared to water.
Whereas water at room temperature, ethyl alcohol at room temperature, and hot motor oil can flow easily.
Thus, we can conclude that out of the given options, honey at room temperature is the most viscous.
