Answer:
B. New tests show that chili peppers may help with certain kinds of pain.
Explanation:
'A.' states a very personal opinion which is unlikely to be used on a public web site.
'C.' focuses upon the taste of the chili peppers along with the health benefits which may be an option, however after reading 'B.', we can see that it is more suited to the question.
'D.' talks about the conventions of the early people on Earth and what they believed was true rather than the reality of the chili peppers.
On the other hand, 'B.' not only focuses on the question completely, but also provides evidence ("New tests show...").
