Fill in the blank with the correct adverb from the options given below:-

Arjun works _____ to achieve his goals, and never succumbs to adverse challenges.

diligently

The correct answer is Option (2) → diligently

Complete sentence:
Arjun works diligently to achieve his goals, and never succumbs to adverse challenges.

Explanation:

• Diligently means in a careful and hard-working manner, which fits perfectly with someone focused on achieving goals.

• Raspingly means in a harsh or grating way — not appropriate here.

• Languidly means slowly or with little energy — the opposite of the intended meaning.

• Sleekly refers to something smooth or glossy in appearance — unrelated.