Fig. below shows a 2 wire DC distributor cable AC of 4 km long supplying loads of 100 A and 200 A at distances of 2 km and 4 km from A. The feeder is fed at point A with a voltage of 500 V. The voltage available at the farthest point in the system is ______.(Assume conductor resistance per km as 0.02 Ω).

• A. 470 V
• B. 460 V
• C. 476 V
• D. 480 V