How do rough grading and finish grading differ?

How do rough grading and finish grading differ?

• A. Rough grading shapes the site to approximate elevations; finish grading tightens tolerances and achieves exact elevations and smoothness per design
• B. Rough grading is used to achieve exact elevations and smoothness per design
• C. Rough grading is identical to finish grading
• D. Rough grading is performed after final grading

Answer: (C)