Which of the following are biogas?
(A) Marsh Gas
(B) Swamp Gas
(C) Producer Gas
(D) Compost Gas
(E) Flue Gas
Choose the correct answer from the options given below:
1
(A), (B) and (D) Only
2
(B), (C) and (E) Only
3
(A), (C) and (E) Only
4
(C), (D) and (E) Only