Mrs. Sunita divides a sum of money among her four children - A, B, C, D - in the ratio 3 : 5 : 7 : 9. If the share of B and C together is Rs. 64,812, what is the total amount received by C and D?

1. Rs. 86,416

2. Rs. 99,491

3. Rs. 85,896

4. Rs. 69,856