In the Context of the Marketing Mix,which of the Following

In the context of the marketing mix,which of the following statements is true of the product?

A) ​It includes not only the physical unit but also its package, warranty, and after-sale service.
B) It is what a buyer must give up in order to obtain a benefit.
C) It includes all the business activities concerned with storing and transporting raw materials.
D) ​It is the last element of the marketing mix.