Assertion : Sphagnum is slowly carbonized, compressed, and fossilized over thousands of years to produce a dark spongy mass called peat. Reason : Peat helps to keep soil porous and it also improves water holding capacity of the soil.

• A. If both assertion and reason are true and reason is the correct explanation of assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of assertion.
• C. If assertion is true but reason is false.
• D. If both assertion and reason are false.