Match List I (Drugs / Chemicals) with List II (Their uses) and select the correct answer using the codes given below the Lists

List I | List II
I. Atropine | (A) Local anaesthesia
II. Ether | (B) Heart trouble
III. Nitroglycerine | (C) Dilation of pupil
IV. Pyrethrin | (D) Mosquito control

Atropine is used in eye drops to dilate the pupil for exams. Nitroglycerine is a medication that widens blood vessels to treat heart trouble like angina. Pyrethrin is a natural insecticide used for mosquito control. Ether is an anesthetic used to prevent pain; while technically a general anesthetic, it is the intended match for 'Local anaesthesia' in this specific question via process of elimination. Thus, the correct matching is Atropine with pupil dilation, Ether with anaesthesia, Nitroglycerine with heart trouble, and Pyrethrin with mosquito control.