Hearing the news, the workers were in a state of euphoria.

A. elation

B. indignation

C. depression

D. disorder

Answer: Option A

Solution(By Examveda Team)

Elation : great happiness and exhilaration.
Indignation : anger or annoyance provoked by what is perceived as unfair treatment.
Depression : feelings of severe despondency and dejection.
Disorder : a state of confusion.
Euphoria : a feeling or state of intense excitement and happiness.

Synonym of Euphoria is Elation