Which of These Is Not an Example of Deceptive Advertising

Which of these is not an example of deceptive advertising?

A) claims that for the price, the item is the best money can buy
B) artificially inflating the original retail price of an item so that when featuring it as a sale item, it looks more marked down than it actually was
C) using a term like "clearance price" when the item is not being sold at a reduced rate
D) misrepresenting the prices of competitors