One Word Substitution

DIRECTIONS : In each of the following questions, out of the four alternatives, choose the one which can be substituted for the given words/sentence.
26. Member of a band of robbers
  A.  Thief
  B.  Dacoit
  C.  Brigand
  D.  Pirate
27. Stage between boyhood and youth
  A.  Maturity
  B.  Puberty
  C.  Adoiescence
  D.  Infancy

28. A person who opposes war or use of military force
  A.  Pacifist
  B.  Fascist
  C.  Narcissist
  D.  Fatalist
29. A small, named group of fixed stars
  A.  Cluster
  B.  Constellation
  C.  Galaxy
  D.  Congregation
30. An entertainer who performs difficult physical actions
  A.  Clown
  B.  Magician
  C.  Gymnast
  D.  Acrobat