Concept:The word "agitated" describes a state of nervousness, worry, or strong displeasure.
Explanation:The workers are "agitated," so they are troubled or uneasy about something.
They plan a meeting, probably to discuss a complaint or grievance.
From the options, "upset" best matches this feeling of being disturbed or unhappy.
"Tired" means lacking energy, "excited" means eager or happy, and "suffering" is too extreme without more context.
Therefore, the closest synonym is "upset."
Answer: B. upset