Correct Answer & Explanation
Option C
• 'EARNEST' means resulting from or showing sincere and intense conviction (আন্তরিক, ঐকান্তিক).
• 'Ardent' means enthusiastic or passionate, which aligns with sincere and intense conviction.
• 'Flippant' means not showing a serious or respectful attitude.
• 'Indifferent' means having no particular interest or sympathy; unconcerned.
• 'Careless' means not giving sufficient attention or thought to avoiding harm or error.