“ You cannot choose what life will have ,” Tai Lihua , a deaf dancer once said , “ but you can choose your attitude towards life”, and this is ______ I completely agree

1. A.
   why
2. B.
   how
3. C.
   what
4. D.
   where

 “ You cannot choose what life will have ,” Tai Lihua , a deaf dancer once said , “ but you can choose your attitude towards life”, and this is ______ I completely agree .

  A. why    B. how   C. what    D. where