6285. Many people feel queasy while travelling on a bus on hilly roads.

✅ The correct answer is option A.
Uneasy : causing or feeling anxiety; troubled or uncomfortable.

Mobile : able to move or be moved freely or easily.

Drowsy : sleepy and lethargic; half asleep.

Dynamic : (of a process or system) characterized by constant change, activity, or progress.

Queasy : slightly nervous or worried about something.

Synonym of Queasy is Uneasy