Which proportion would convert 18 ounces into pounds?

Responses
A 16 oz/1 lb = 18 oz/x lb
B 16 oz/x lb = 18 oz/1 lb
C 1 oz/x 1b = 18 oz 16 lb
D 16 oz/x lb = 1 lb 18 oz
E 16 oz/1 lb = x lb 18 oz