Subject: mathqa
Question: a pet store regularly sells pet food at a discount of 10 percent to 30 percent from the manufacturer ’ s suggested retail price . if during a sale , the store discounts an additional 20 percent from the discount price , what would be the lowest possible price of a container of pet food that had a manufacturer ’ s suggested retail price o f $ 20.00 ?
Option: 
A: $ 16.00
B: $ 18.00
C: $ 10.00
D: $ 11.20
Answer: D