Answer: It would not be a good idea to swim keeping in mind that I have never swum this far and that I am somewhat tired.
Explanation: A person who knows that he has not swum that far and is tired at the same time would not be a good idea to try to swim. Many people have drowned trying to swim at distances they have not done before and it is dangerous to do so if, above that, it feels tired.
I believe you meant creatine instead of creating? The answer is that Creatine<span> is an organic acid that plays a key </span>role<span> in supplying energy for muscle cells during intense activity. </span>Creatine<span> is produced naturally by the </span>body<span> and found in small quantities in animal products. </span>Creatine<span> stored in muscle cells helps produce ATP, which is the primary energy currency in the </span>body<span>.</span>
I would say, A. Endoscopy because, it is a tube that goes down the throat or the other way and looks through the digestive tract and the throat cavity.