The correct option is D ₹ 1000
Ratio of investments
=500010000=12
Therefore, losses incurred are also in the ratio 1:2
Let the loss incurred by C be x and the loss incurred by D be 2x
Total loss = ₹ 3000
⇒ x + 2x = 3000
⇒ x = 1000
Therefore, C would incur a loss of x i.e., ₹ 1000.