8079. After that tiresome long journey, he felt drowsy.

✅ The correct answer is option A.
Sluggish : lacking energy or alertness.

Irritable : having or showing a tendency to be easily annoyed.

Energetic : showing or involving great activity or vitality.

Dizzy : having or involving a sensation of spinning around and losing one’s balance.

Drowsy : sleepy and lethargic; half asleep.

Synonym of Drowsy is Sluggish