5. Dannon Yogurt's television ads claimed that its Activia yogurt relieved irregularity and helped prevent colds. However, Dannon later agreed to pay a $20 million fine to the FTC because it could not produce scientific studies supporting these health claims. Which of the following is correct?

a. The yogurt products were defective.

b. The ads created a false impression.

c. The ads were just "puffing" and not considered false statements presenting legal or ethical issues.

d. None of these are correct.