Which statement describes lubricants?

Which statement describes lubricants?

• A. Soften the skin
• B. Protect skin
• C. Reduce friction between surfaces
• D. Absorb water

Answer: (C)

Lubricants work by forming a slippery film between contacting surfaces, so the two surfaces move more easily past each other. This lowers friction, which reduces wear and aids smooth operation in both manufacturing and practical use. That makes reducing friction between surfaces the best description. Softening the skin describes emollients, not the defining role of lubricants. Absorbing water relates to hygroscopic materials, not to how lubricants function. Protecting skin can be a beneficial effect in some contexts, but it’s not the primary property that defines lubricants.

Lubricants work by forming a slippery film between contacting surfaces, so the two surfaces move more easily past each other. This lowers friction, which reduces wear and aids smooth operation in both manufacturing and practical use. That makes reducing friction between surfaces the best description.

Softening the skin describes emollients, not the defining role of lubricants. Absorbing water relates to hygroscopic materials, not to how lubricants function. Protecting skin can be a beneficial effect in some contexts, but it’s not the primary property that defines lubricants.