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.
41. Place where birds are kept
  A.  Zoo
  B.  Armoury
  C.  Apiary
  D.  Aviary
42. A persons who speaks for or supports an idea
  A.  Adviser
  B.  Pioneer
  C.  Advocate
  D.  Ideologist

43. The place where bricks are baked
  A.  Mint
  B.  Foundry
  C.  Cementary
  D.  Kiln
44. People in a rowdy scene
  A.  Crowd
  B.  Mob
  C.  Congregation
  D.  Rabble
45. Seat on elephant's back
  A.  Saddle
  B.  Howdah
  C.  Hoof
  D.  Lounge