The property to flow is unique to fluids. Which one of the following statements is correct?
(a) Only gases behave like fluids
(b) Gases and solids behave like fluids
(c) Gases and liquids behave like fluids
(d) Only liquids are fluids

Correct answer: (c) gases and liquids behave as fluids

Explanation: Fluids are substances that have the ability to flow. Gases and liquids can flow easily because their particles are free to move. Hence, gases and liquids behave as fluids is the correct option.