Choose the correct sequence of microbes involved in biogas production?
| A. |
Fermentative microbes, decomposers, methanogens |
| B. |
Decomposers, Methanogens, Putrefying microbes |
| C. |
Putrefying microbes, methanogens, saprophytic microbes |
| D. |
Decomposers, fermentative microbes, methanogens |
 |