Q. Consider the following compounds:
1.Isoprene
2.Hydrogen
3.Oxygen
4.Carbon dioxide
5. Carbon monoxide Which of the compounds are emitted by trees?

• (A) 2, 3, 4 and 5
• (B) 1, 4 and 5
• (C) 2, 3 and 4
• (D) 1, 3 and 4