Which of the Following Factors That a Manager Should Bear

Which of the following factors that a manager should bear in mind when estimating a project's revenues and costs is NOT correct?

A) Sales of a product will typically accelerate,stabilize,and then decline as the product becomes outdated or faces increased competition.
B) A new product typically has its highest sales immediately after release as customers are attracted by the novelty of the product.
C) The prices of technology products tend to fall over time as newer,superior technologies emerge and production costs decline.
D) Prices and costs tend to rise with the general level of inflation in the economy.