What Kind of Objectionable Advertising,if Any,was Barry Engaged in When

Multiple Choice

What kind of objectionable advertising,if any,was Barry engaged in when he offered convertibles for sale for $10,000 but only had three and then tried to convince customers to purchase a much more expensive vehicle?

A) Advertise-and-deny
B) Claim-and-refuse
C) Bait-and-switch
D) Ad trickery
E) He was not engaged in any objectionable advertising so long as he had at least one vehicle in stock at a price of $10,000.