Please choose the correct answer to the question: A toothpaste commercial states that a brand of toothpaste has a higher concentration of fluoride than any other toothpaste available. The commercial is most likely inferring that the advertised toothpaste

Answer1: has a pleasant flavor. Answer2: is recommended by dentists. Answer3: promotes good dental hygiene. Answer4: is the most expensive brand sold.

Answer format: answer1/answer2/answer3/answer4