Here's a problem to solve: 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

Among the 4 following options, which is the correct answer?

- A: has a pleasant flavor.
 
- B: is recommended by dentists.
 
- C: promotes good dental hygiene.
 
- D: is the most expensive brand sold.
 