উত্তর সিলেক্ট করলে সঠিক ও ভুল দেখাবে।
ব্যাখ্যা ও সঠিক সমাধান
উত্তর:
a cardiologist
One who is a specialist in heart and it’s diseases is a cardiologist.
(ক) Pharmacologist is a person who is a specialist in pharmacy. (খ) Opthalmologist is in opthalmology (গ) Neurologist is in neurology (ঘ) Cardiologist is in Cardiology. So, answer is (গ)।