A 20 m chain was found to be 10 cm long after chaining a distance of 2000 m. It was found to be 18 cm long at the end of the days work after chaining a total distance of 4000 m. What is the true distance, if the correct chain was used for the measurement work?
- A. 3962 m
- B. 4019 m
- C. 3981 m
- D. 4038 m