The average of $$\frac{1}{4}$$ of A and $$\frac{1}{3}$$ of B is 5, and the average of $$\frac{1}{2}$$ of A and $$\frac{1}{2}$$ of B is 9. The average of 2A and 3B is:

A

42

B

46

C

32

D

40