৪৮তম বিশেষ বিসিএস [স্বাস্থ্য] ⎯ মডেল টেস্ট [Archived]১টি পরীক্ষায় এসেছেপ্রশ্ন ২৫In which of the following sentences is the word "sound" used as a noun?কI am not sure that this is sound democratic practice.খHe attempted to sound a positive noteগThere was a splintering sound as the railing gave way.ঘThey are trained nutritionists who can give sound advice on diets.উত্তর দেখুন