Answer:
D) The reported pain for yoga participants decreased by one third, while the standard treatment group had only a five percent drop.
Explanation:
This sentence has already been used in the Wikipedia page. By using this sentence in your research paper, you are copying and therefore, plagiarizing, this article.
Answer:
The answer would be A.
Because a decade is 10 years there for the only option that would be correct would be A.
For what though. Is there something there I need to see to answer the question?