Assertion: The inner zone of the candle flame is black.
Reason: The inner zone lacks oxygen, hence no combustion occurs here.
(a) Assertion is true, reason is true; reason is a correct explanation for assertion.
(b) Assertion is true, reason is true; reason is not a correct explanation for assertion
(c) Assertion is true, reason is false
(d) Assertion is false, reason is true.
