Which statement is an example of an appeal to authority fallacy?

Question

A. Anyone who says our weighted blankets are ineffective clearly believes that getting good sleep is unnecessary.
B. This Olympic athlete personally uses our weighted blanket and says it is a scientifically advanced product.
C. Join the millions of people around the world who have discovered the benefits of our weighted blankets.
D. You can either buy our weighted blanket or resign yourself to tossing and turning every night.

Answer 1

B. This Olympic athlete personally uses our weighted blanket and says it is a scientifically advanced product.

This statement is an appeal to authority fallacy because it relies on the authority of an Olympic athlete to endorse the weighted blanket, suggesting that their status somehow validates the effectiveness and scientific basis of the product, rather than providing empirical evidence or scientific data to support the claim.