‘Geriatrics’ is the branch of medicine concerned with the diseases and care of—

✅ কেন সঠিক: Geriatrics is the branch of medicine concerned with the diseases and care of old people (Greek ‘geron’ = old man).

❌ অন্য অপশন: Care of newborn babies is neonatology; there is no branch specifically for old women or newly-weds.

💡 মনে রাখুন: geriatrics — old age; paediatrics — children; neonatology — newborns; gynaecology — women.

📖 শব্দার্থ: geriatrics — বার্ধক্য-চিকিৎসাবিজ্ঞান।