I think the correct one is B
An author's credentials can determine a health source's credibility. None of the other options would apply to credibility. When it comes to health, if you want to make sure that what you are researching or reading is authentic and reliable you need to find out whether the author is a professional health expert or not. You can do this by finding out their credentials.
I think it was two weeks if it’s the same thing I remember. I’m not 100% sure
Paranoia? It can also be restlessness and high blood pressure. whichever one seems right to you. hope this helps!
