X, Y and Z invested Rs.4,000, Rs.6.000 and Rs.8,000 respectively in a business. They invested the money for 3, 2 and 4 years respectively. If the total profit is Rs.56.000, then what is the share of Y in the profit?

A

Rs.18,000

B

Rs.12,000

C

Rs.15,000

D

Rs.9,000