Assertion : Sphagnum is slowly carbonised, compressed and fossilised 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.

Options

1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
2. BIf both assertion and reason are true but reason is not the correct explanation of assertion.
3. CIf assertion is true but reason is false.
4. DIf both assertion and reason are false.