Orange Juice==Unit: 1 L
Minute Maid-1.89 L Price:: $2.47 1.89 L: $2.47 1 L: $1.30	Sunkist-1.65 L Price:: $2.88 1.65 L: $2.88 1 L: $1.74
Sunny D-1.89 L Price:: $1.57 1.89 L: $1.57 1 L: $0.83


Smart Choice-1.89 L Price:: $1.77 1.89 L: $1.77 1 L: $0.93	Beatrice-1.89 L Price:: $1.99 1.89 L: $1.99 1 L: $0.83

The best buy is Sunny D-1.89 L because as well as the fact that it has the lowest unit price, it also has the lowest price for buying the whole jug/carton because since this carton is larger than 1 L, you need to buy the whole, one carton, not just a part of it.

1 carton for $1.57 == $1.57 for 1.89 L