Question

1. Why do advertisers use testimonials?

They provide accurate, proven information to inform the consumer.
They provide hidden lies that will always misinform the consumer.
They provide celebrity encouragement to persuade the consumer.
They provide rebate money after purchases to refund the consumer.

2. Which of the following is a promise advertisers could make to promote healthy living using fitness equipment?

"Use full body movements to improve your health."
"Get into a bikini by this summer with our muscle toner machine."
"Powerlift the heaviest weights in three complete workouts."
"The juice-only mixer will enable you to have more power."

Answer 1

For the first one, the best answer is that they:

They provide celebrity encouragement to persuade the consumer.

they don't always contain lies, but also they don't need to contain the truth, they contain an opinion.
The second one:

"Use full body movements to improve your health."."

this is the only one that actually mentions a sports health - the other ones focus on the appearance rather than health