Which is most likely to happen when an individual's heart beat and breathing rate are substantially reduced by the combined use of certain drugs and alcohol?

Question: Which is most likely to happen when an individual's heart beat and breathing rate are substantially reduced by the combined use of certain drugs and alcohol?
  they may vomit uncontrollably
  they may become comatose
  they may perspire excessively
  they may become aggressive

Click here to know the Answer

they may become comatose