Which statement correctly describes edge-friendly gear compared to crack-friendly gear?

• A. Edge-friendly gear sits in cracks using internal friction; crack-friendly gear sits on edges or knobs and has different grip and load characteristics.
• B. Crack-friendly gear sits in cracks, taking advantage of internal friction; edge-friendly gear sits on edges or knobs with different grip and load characteristics.
• C. Edge-friendly gear sits near edges but has identical grip to crack-friendly gear.
• D. Edge-friendly gear and crack-friendly gear have identical grip and load characteristics.

Answer: (B)