which of the following has the lowest unit price?
A20 lb for $16.20,
B26 lb for 23.40,
C24 lb for 18.72 or,
D22 lb for 18.70
A20 lb for $16.20,
B26 lb for 23.40,
C24 lb for 18.72 or,
D22 lb for 18.70