There is no information attached but you can analyze which point make any piece of information reliable in general. The most important thing is that information was extracted from experiences that approved by scientists from defferent sphere, so that different people are sure about the same thing. As I understood, this article connected with veterinary studies and this option looks like the most suitable : <span>It is reliable because the article is based on multiple studies done by scientists at multiple veterinary schools.</span>
Answer:
<em>The correct option is C) 1 only</em>
Explanation:
It would be necessary to ask from the scientist about the group of people on which he performed his experiment because it might be that certain other factor was the influence for the change in the requirement of Vitamin E, It might be that the people of that specific area or country might have a Vitamin E deficiency due to which there requirement was more for Vitamin E. Or there might be any other environmental or genetic factor influencing the change.
