The maximum rimpull in the first gear of a tractor while towing a load is 6300 kg. The tractor weighs 12.5 tonnes and is operating along a 2 percent upgrade and the rolling resistance is 45 kg/tonne. Pull available for towing the load is

• A. 3425 kg
• B. 5515 kg
• C. 4350 kg
• D. 2975 kg