It is good to laugh and do yoga breathing exercises at the same time because_______ .

• A. 
  you laugh very funnily a lot during the laughter yoga classes
• B. 
  you join a group and meet professionals all around the world
• C. 
  Laughter Yoga teaches you to have a sense of humour and understand funny jokes
• D. 
  you not only feel calm and relaxed, but also have full of energy and happiness