Alloy A contains metals x and y only in the ratio 5 : 2, while alloy B contains them in the ratio 3 : 4. Alloy C is prepared by mixing alloys A and B in the ratio 4 : 5. The percentage of x in alloy C is:

A

$$55\frac{1}{9}$$

B

$$55\frac{2}{9}$$

C

$$55\frac{5}{9}$$

D

$$55\frac{4}{9}$$