ComputersNow ran an ad for deal on an all$-$in$-$one computer system. When customers entered the store to purchase the system, employees switched them to a higher$-$priced model by claiming that the advertised computer system is out of stock. This deceptive advertising practice is known as

Multiple Choice

false promises.

misleading comparisons.

false testimonials.

bait$-$and$-$switch.

partial disclosure.