Volatile Organic Compounds (VOCs)

Consider the following statements:

  1. Volatile Organic Compounds (VOCs) are carbon-containing chemicals released by petrol and diesel vehicles.
  2. They impact air quality and human health.
  3. VOCs can have a natural origin also. Plants emit these chemicals to attract pollinators, defend themselves from pests and predators and adapt to environmental stress.

Which of the above statement(s) is/are true?

A
1 and 2
B
2 and 3
C
1 and 3
D
All of the above