Question
Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are sources of lead poisoning ?
I. Smelting units
II. Pens and pencils
III. Paints
IV. Hair oils and cosmetics
A
I, II and III only
B
I and III only
C
II and IV only
D
I,II, III and IV
Answer & Explanation
Option: [B]
