Distinguish between unsanded and sanded grout and describe when to use each?

• A. Unsanded grout is used for joints larger than 1/8 inch; sanded for small joints.
• B. Sanded grout is used for joints up to 1/8 inch to resist scratches.
• C. Unsanded grout is used for joints up to 1/8 inch and on polished or smooth tiles to avoid scratching; sanded grout is used for joints larger than 1/8 inch to resist shrinkage cracks.
• D. Unsanded grout is never used.

Answer: (C)