Direction: In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.

Q:

to cast iron stomach

• 1
  a very greedy person
• 2
  to be able to eat or drink anything without any problems
• 3
  to be indifferent to harsh words
• 4
  to face so many difficulties in life that one now becomes immune to even poison