Concerning Cost,which of the Following Is/are True

Concerning cost,which of the following is/are true?

A) Lowering cost results from the organization's ability to use resources more efficiently to obtain its objectives.
B) Reducing costs is important because of the long-run relation between product cost and price.
C) If two products provide the same quality and services,the customer will choose the product with the lower price.
D) All of the answers are correct.