A started a business investing Rs. 45,000. After 3 months, B joined him with a capital of Rs. 60,000. After another 6 months, C joined them with a capital of Rs. 90,000. At the end of the year, they made a profit of Rs. 16,500. What is A's share of profit ?

• A. Rs. 5,500
• B. Rs. 6,500
• C. Rs. 6,900
• D. Rs. 5,900