Amber is part of a large family with two parents, two grandparents, and four siblings in her household. Her family shops for groceries every two weeks, and they need to be able to buy large quantities of food at one time to be able to afford everything they need. What would be the BEST option for Amber's family? a. Shopping at a big box store that is a warehouse
b. Shopping at multiple stores for several items
c. Shopping with an app to compare prices
d. Shopping at a local upscale store for fresh food​