Answer:
A
Explanation:
Firstly, if those ions were as helpful to 9 out of 10 people as they claim, it would have already been sold out.
Secondly, even if the data is correct, such product would not be for sale but for customization.
The answer would be A. The claims are based on empirical evidence and are likely to be pseudoscientific. They are not particularly useful
hope this helps
