In this question, you are given two lists. List-I contains items and List-II contains toxic substances. You need to match the items in List-I with the corresponding toxic substances in List-II.
Option 1: A-4, B-2, C-3, D-1
According to this option, CFL lamp (Item A) is matched with Mercury (Toxic Substance 4). Automobile battery (Item B) is matched with Phthalates (Toxic Substance 2). Polymer (Item C) is matched with Lead (Toxic Substance 3). Diesel engine (Item D) is matched with Nitrogen oxides (Toxic Substance 1).
Option 2: A-4, B-3, C-2, D-1
According to this option, CFL lamp (Item A) is matched with Mercury (Toxic Substance 4). Automobile battery (Item B) is matched with Lead (Toxic Substance 3). Polymer (Item C) is matched with Phthalates (Toxic Substance 2). Diesel engine (Item D) is matched with Nitrogen oxides (Toxic Substance 1).
Option 3: A-1, B-2, C-3, D-4
According to this