A natural food market sells organic granola in bulk for $1.60 per ounce. Which of the following statements is true?

It would cost $38.40 to buy 24 ounces of granola at the market.
It would cost $16.16 to buy 16 ounces of granola at the market.
It would cost $0.20 to buy 8 ounces of granola at the market.
It would cost $13.60 to buy 12 ounces of granola at the market.