His unscrupulous pursuit of wealth finally landed him in prison.

A. superfluous

B. single-minded

C. dedicated

D. conscientious

Answer: Option D

Solution(By Examveda Team)

Unscrupulous : having or showing no moral principles; not honest or fair.
Superfluous : unnecessary, especially through being more than enough.
Single-minded : concentrating on only one aim.
Dedicated : devoted to a task or purpose.
Conscientious : wishing to do one's work or duty well and thoroughly.

Antonym of Unscrupulous is Conscientious