Correct option is C
The correct option to fill in the blank is (c) persevered.
Persevered means continued steadfastly despite difficulty—perfectly matching “despite the setbacks” and successful delivery. (Hindi:
दृढ़ता से डटे रहे/लगातार प्रयास करते रहे).
Example: Even after delays, the engineers persevered and met the deadline.
Explain why other options are incorrect.
·
loosen: make less tight (Hindi:
ढीला करना); wrong form/meaning.
·
captured: seized/took control (Hindi:
कब्ज़ा किया/पकड़ा); not about enduring effort.
·
faltered: hesitated/lost strength (Hindi:
डगमगा गए/हिम्मत हार गए); contradicts timely delivery.
·
preserved: kept safe or maintained (Hindi:
संरक्षित किया/संरक्षित रखा); not about persisting through challenges.