单项选择题

What does the author imply by saying "This is not cheating" in the last paragraph

A.Nobody will consider it a cheat to reuse parts from old products in new models.
B.Usually people will feel being cheated when old parts are used in new products they buy.
C.Reusing parts from old products in new models will not be punished because it isn't cheating.
D.Electronics manufacturers should tell customers there are used parts in new products.