Assertion: In nature, animals, plants and microbes do not and cannot live in isolation.
Reason: For any species, the minimal requirement is one more species on which it can feed.
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.
