Which of the Following Is the Best Description of 'Bait

Which of the following is the best description of 'bait advertising'?

A) Advertising goods or services that they do not intend to supply.
B) Advertising a product or service at a cheap price only to tell customers it is no longer available and offering another at a higher price.
C) Accepting payment for goods or services that are different from those which were ordered.
D) All of the above.