(a) In any advertisement for two or more similar items or services, when a range of prices is stated, or the existence of a range is implied, the highest price must be stated in figures at least as tall and broad as the figures in the lowest price stated. The existence of a range is implied where words such as, but not limited to, "from," "as low as," "beginning at," "starting at," or "______ and up" are used in an advertisement. This subdivision (a) applies even where an advertisement discloses the price of all items and services.
(b) Any prices stated must relate to specific items or services.
(c) If the price of items or services is unascertainable, any price or prices stated must include the average price for which the goods or services were sold by the advertiser during the previous year or selling season. Such a price must be described as the "average price."