Concept:
- This is a phrase-completion matching question, each List-I phrase is an incomplete idea that needs the right List-II ending to make full sense.
- Solve it by reading each List-I item with every List-II option and picking the one that forms a natural, meaningful sentence.
- Common collocations to know: 'keep away from' (avoid), 'laid off' (dismissed from work), 'taken up' (started as an activity or career), 'look down upon' (consider inferior).
Step 1: Match A.
'One should always keep away from' naturally completes with 'selfish people because they can cause harm' (III), since we keep away from people who can harm us.
Step 2: Match B.
'The workers have been laid off' pairs with 'for want of raw material' (I), a common real-world reason for layoffs.
Step 3: Match C and D.
'She has taken up' fits 'modelling as a career' (II), since 'take up' is used with starting a career or hobby.
'It is unfair to look down upon' fits 'the weak students in the class' (IV), since looking down upon someone means treating them as inferior.
Step 4: Combine the matches.
This gives A-III, B-I, C-II, D-IV, which matches only one option.
Final Answer: A-III, B-I, C-II, D-IV