The answer to your question would be "a". This is the answer choice because, participating in a drinking game, drinking for the first time and winning a bet or dare aren't "life threatening". Thus leaving the answer choice "a" because falling into a coma could be life threatening. I hope this answers your question :)
The best way to get accurate information on the risks of a new health-enhancing activity is to consult someone who is informed and experienced in that activity and it is a good idea to consult your doctor about the activity before participating in it to make sure you are physically capable of doing so.
His conduct was attacked before the board of directors in London, but events seemed to prove that he was in the right, and in 1769 he became a director of the company, having in the previous year obtained a seat in parliament.
Critical thinking is like language and meaning to different things and inference is a conclusion to the end of your story