Find the price per oz.
Pint (16 oz) $1.28 = $0.08 / oz
Quart (32 oz) $1.92 = $0.06 / oz
Half-Gal (64 oz) $4.48 = $0.07 / oz
Gallon (128 oz) $11.52 = $0.09 / oz
The best value for buying orange juice is the cheapest price.
Cheapest option: B at $0.06 /oz