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.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. Sustainability.
"Viable" refers to something that is capable of working successfully or being effective.
"Sustainability" refers to the ability to be maintained or continued over a long period of time without exhausting resources or causing damage to the environment.
In the context of the sentence, both "viable" and "sustainability" convey the idea of effectiveness and long-term success, making them synonymous in this context.