Answer:
Step-by-step explanation:
I think it's A.
You should always question the source. You might be lucky and discover what they've not said about their product. Or you may discover it is simply not true.
A few years back (many in fact), there was a product on the market call Laetrile. It was produced from peach pits. It has an overwhelming popularity that Sloan Kettering (the Cancer Clinic in New York -- the oldest and largest one in the world), spent some of their needed grant money to test Laetrile. The results -- nothing. Imagine what happened to those who marketed this product. Word got around. People with Cancer are pretty desperate. They and their loved ones will try anything.
But the facts on the internet help to dispel this kind of thing.