Select the option that can be used as a one-word substitute for the underlined words.
He was promoted to a higher position in the first year due to his careful nature and hard-working efforts.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. diligence.
The one word substitute for "careful nature and hard-working efforts" Is "diligence."
"Diligence" refers to careful and persistent work or effort, which accurately captures the meaning of being hardworking and attentive.
The other option do not fit the context.