Go-well Vitamins are made especially for teenagers. They make your skin shiny and clear. Mrs. J. Rice reports that her daughter's skin has improved dramatically, thanks to Go-well Vitamins. "I love what Go-well has done for me," Lily Rice confirms. Go-well is making teens happy throughout the Midwest. Bottles are flying off the shelves.

Question

Why is the claim about the vitamins unsupported by sufficient evidence?

(1 point)
Responses

The passage includes references to scientific research.
The passage includes references to scientific research.

The passage includes references to emotions.
The passage includes references to emotions.

The passage centers on a personal testimonial.
The passage centers on a personal testimonial.

The passage uses a figure of speech in the last line.

Answer 1

The claim about the vitamins is unsupported by sufficient evidence because:

The passage centers on a personal testimonial.

Personal testimonials, while they can provide anecdotal evidence, do not constitute scientific proof or broad evidence that the product works for everyone.