Neeraj, Vikas and Manav enter into a partnership. Neeraj invests some amount at the beginning. Vikas invests double the amount after 6 months and Manav invests thrice the amount invested by Neeraj after 8 months. They earn a profit of Rs. 45,000 at the end of the year. What is Manav's share in the profit?

• A. Rs. 25000
• B. Rs. 15,000
• C. Rs. 12,000
• D. Rs. 9,000