What is the meaning of the word "Superannuation"?

Correct option is A

The correct one-word for the given group of words is (a) Superannuation.
Explain the correct answer (Hindi meaning): Superannuation refers to an employer-supported retirement-benefits system or pension fund into which contributions are made during employment, providing income after retirement (Hindi: सेवानिवृत्ति निधि/पेंशन योजना).
Example: Many companies contribute a fixed percentage of salary to employees’ superannuation funds.
Meanings of the given other options:
· (b) The act of receiving a bonus — A bonus is an extra payment as a reward (Hindi: अतिरिक्त पारिश्रमिक/बोनस).
· (c) A type of insurance for future health care — Health insurance/medical coverage (Hindi: स्वास्थ्य बीमा).
· (d) The process of becoming too old to work — That is retirement due to age (Hindi: आयुजन्य सेवानिवृत्ति). Note: While superannuation can be associated with retirement at a certain age, in HR/finance usage it specifically denotes the benefit/fund system, not merely the state of being too old to work.