Explanation:

The word 'bashful' means reluctant to draw attention to oneself; shy. Therefore, 'Shy' is a direct and accurate synonym. Option (1) 'Aggressive' means confrontational, which is the opposite. Option (2) 'Gregarious' means sociable, also the opposite. Option (3) 'Dashing' means stylish and confident, which does not align with the meaning of bashful.