Which of the following are the reasons/factors for exposure to benzene pollution?1. Automobile exhaust2. Tobacco smoke3. Woodburning4. Using varnished wooden furniture5. Using products made of polyurethaneSelect the correct answer using the code given below:

Which of the following are the reasons/factors for exposure to benzene

1.	Which of the following are the reasons/factors for exposure to benzene pollution?1. Automobile exhaust2. Tobacco smoke3. Woodburning4. Using varnished wooden furniture5. Using products made of polyurethaneSelect the correct answer using the code given below:
A.	1, 2 and 3 only
B.	2 and 4 only
C.	1, 3 and 4 only
D.	1, 2, 3, 4 and 5
Answer» E.