DILIGENT

Answer: Option D

Progressive : happening or developing gradually or in stages.
Brilliant : exceptionally clever or talented.
Inventive : having the ability to create or design new things or to think originally.
Hard-working : (of a person) tending to work with energy and commitment; diligent.
Diligent : having or showing care and conscientiousness in one's work or duties.


Synonym of Diligent is Hard-working