Select the most appropriate synonym of the word ‘viable’ in the given sentence and choose the correct option.
The engineer’s design was optimised for efficiency and scalability, with a focus on sustainability.

Correct option is D

The correct synonym of the given word is (d) Sustainability.
Viable: Capable of working successfully; feasible or sustainable in the long run. (व्यवहार्य, टिकाऊ)
Example: They came up with a viable plan to reduce waste.
Sustainability: The ability to be maintained at a certain level, especially without harming the environment or future needs. (टिकाऊपन)
Example: The company promotes sustainability through eco-friendly products.
Synonyms: feasible, practical, workable, sustainable
Antonyms: impractical, unfeasible, nonviable, unworkable
Meanings of all the given options:
· (a) Efficiency: Ability to do something well without waste (कुशलता)
· (b) Optimised: Made as effective as possible (सर्वोत्तम बनाया हुआ)
· (c) Scalability: Capability to expand and handle growth (विस्तारणीयता)
· (d) Sustainability: Ability to endure or maintain (टिकाऊपन)