The different actions that take place in anaerobic decomposition process are1. Alkaline fermentation2. Acid fermentation3. Acid regression4. Methane formationWhat is the correct sequence of these actions (from earlier to later)?

• A. 4, 3, 1 and 2
• B. 2, 3, 1 and 4
• C. 4, 1, 3 and 2
• D. 2, 1, 3 and 4