UPSC CDS 1 2022 English Paper

The correct answer is 'Owing to.'
Key Points
- With regard to is a preposition that signals a reference to the subject of a sentence.
- Example: With regard to dinner, my vote will always support pizza
- Due means expected or planned to happen or arrive.
- When combined with the rest of the sentence, it functions as an adjectival prepositional phrase.
- Example: The rent is due on the fifteenth of each month.
We can use as to introduce two events happening at the same time.
- Example: As I knew you would be late, so I left early.
- Owing to indicates that something happened as a result of something or introduce the reason for something happening.
- Example: I missed my flight owing to a traffic hold-up.
- Correct sentence: Owing to his ill health, he retired from his business.