Which of the Following Statements About Volatile Organic Compounds (VOCs)

Multiple Choice

Which of the following statements about volatile organic compounds (VOCs) is true?

A) VOCs contribute to smog, but they generally have no adverse health effects.
B) The biggest contributor of VOCs to the atmosphere is fires.
C) VOCs include benzene and methyl chloroform which cause cancer.
D) Transportation and burning of fuels are the only important sources of VOCs.
E) Indoor air pollution with VOCs is less important than outdoor pollution.