Answer:
The resource Oliver should use is:
B. a scientific study published in a consumer magazine; chicken was prepared in both ways and then tested for strains of bacteria.
Explanation:
Why?
Oliver wants to know what is safer. Therefore, he should focus on resources that have criteria and proper means for testing safety when it comes to food. Option B concerns a scientific study that is bound to follow rules and procedures. That is the best option.
In option A, the blogger may be a very good cook, but that does not necessarily mean she knows and does everything in the safest possible way. In option C we have a similar situation. Nobody has ever gotten sick from grandma's chicken, but that may be a matter of luck or coincidence. Option D says food safety standards never change, which is not true. A long time ago, for instance, people did not understand the importance of washing vegetables as we do today. All these options can be eliminated.
The answer is A, because it is telling you that everybody is happy and wants to have that Job.
The correct answer for the question that is being presented above is this one: "d. keystone." The part of an arch that projects slightly from the wall and the point where the arch springs from is called the keystone.