Consider the following statements.
1. Methane is also known asmarsh gas.
2. The main component of the natural gas is methane.
3. The main component of the gobar gas is methane.
Which of the statements given above are correct?

A. 1 and 2

B. 1 and 3

C. 2 and 3

D. 1, 2 and 3

Answer: Option D