Everybody likes him because he is an industrious student.

Answer: Option D

energetic : showing or involving great activity or vitality.
prompt : (of an event or fact) cause or bring about (an action or feeling).
excellent : extremely good; outstanding.
diligent : having or showing care and conscientiousness in one's work or duties.
industrious : diligent and hard-working.


Synonym of industrious is diligent