Hmm???????

Question

A substance classified as a fluid contains particles that
a. quickly expand into any available space.
b. are held in fixed positions.
c. may slide past each other.
d. are very far from each other.

Answer 1

I do not know what is your question. But 'b' and 'd' options can be considered as incorrect description of what is fluid. Fluid are what can flow and both gas and liquid can flow. But mind you a heap of sand is not fluid.