The best response would be No thanks, I don't want to drink alcohol.
The first step is realizing that you have a problem.
This step seems simple, but it's sometimes hard to admit. You can't help somebody that doesn't want to be helped.
The answer is source B because it has a listed author who is an expert and it is the governments organization website which are more reliable that a .com website. Source A does not even list the author so you do not know who wrote it could be anyone.
Answer: Medical oncologist: A doctor who specializes in diagnosing and treating cancer with chemotherapy and other drugs. A medical oncologist is different from a surgical oncologist, who mostly treats cancer with surgery.
Explanation: