In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

A warning of impending danger

Out of the four alternatives, choose the one which can be substituted for the given words/sentences.
One who is indifferent to pain or pleasure

The most suitable ‘one word substitute’ of the following words are ; ( in right order ) ;
( a ) fear of confined spaces ;
( b ) a person who has an irresistible desire to steal. Options: 

Choose one word for the expressions from the options given below:

Statement of how much a piece of work will probably cost. 

Choose one word for the expressions from the options given below:

Someone who eats a lot of food. 

Choose one word for the expressions from the options given below:

Someone who does not like to work. 

To throw or drop unnecessary goods or fuel from a ship, an aircraft, a spacecraft etc. 

Placing a thing beside another