You are trying to sell a new electronic toothbrush at the airport to busy, distracted travelers. Which of the following strategies is least likely to be successful at getting people to buy a...

You are trying to sell a new electronic toothbrush at the airport to busy, distracted travelers. Which of the following strategies is least likely to be successful at getting people to buy a toothbrush?

 a. Make up a flier that gives convincing reasons why the toothbrush is so good.

b. Make a large sign that says, “9 out of 10 dentists recommend this toothbrush!”

c. Put up a large banner featuring a picture of your friend who looks like Brad Pitt posing with the toothbrush.

d. Stop people and say, “Do you know that this is the toothbrush that is used the most by Hollywood stars?”