Sam's Club,a Discount Retail Division of Wal-Mart,specializes in the Sale

Sam's Club,a discount retail division of Wal-Mart,specializes in the sale of products like jewelry,clothes,and food.The management at Sam's Club decided to increase sustainability by decreasing energy costs.One solution to decrease energy costs was a new milk jug to decrease the number of milk deliveries to stores,thereby reducing energy costs.This is an example of ________.

A) increased profit
B) increased quality-of-life
C) increased social investment
D) increased innovation
E) increased productivity