Ray heard his mother say something about switching to gluten-free cooking. He has no idea what this means except that it has something to do with not eating wheat. Ray went to the library to do some research.
Which one of these would be the most credible source for Ray to choose?
ОА. .
a Web site that is run by people with severe food allergies and other food-related health problems
ОВ. .
a book by an author who has tried a number of diets, including gluten-free and no carbohydrates
OC.
a journal article that was written by someone who studied food-related health problems at Oxford University in Europe
OD.
a book on gluten-free diets by an author who has two degrees in nutrition and works at the University of Rockingham

OD

Explanation:

OA: A web site could be useful for a quick answer but not a very accurate one. Especially since these people arent certified in food.

OB: A book sounds like a very credible place to look for answers but this book is more about personal experiences in diets and isn't certified in food.

OC: An article sounds like a very credible source but is from a person who studied food related problems, meaning that what they have studied isnt as official as an actual certified worker in food.

OD: The most credible source for Ray to choose would be a book on gluten-free diets by an author who has two degrees in nutrition and works at the University of Rockingham.

the correct answer is (a) . answer should be simple, clear and brief.