The side $$BC$$ of a triangle ABC is extended to D. If $$\angle$$ ACD = $$112^\circ$$ and $$\angle$$ B= $$\frac{3}{4}$$ of $$\angle$$ A, then the measure of $$\angle$$ B is 

A

$$45^\circ$$

B

$$64^\circ$$

C

$$48^\circ$$

D

$$30^\circ$$