Assertion : When need turns to greed, it leads to co-extinctions.
Reason : When a species becomes extinct, the plant and animal species associated with it in a facultative way also become extinct.
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.