Assertion: Oxygen can be considered a waste product in plants.
Reason: A by-product of photosynthesis is oxygen.
a) Both assertion and reason are true and reason is the correct explanation of assertion.
b) Both assertion and reason are true but reason is not the correct explanation of assertion.
c) Assertion is true but reason is false.
d) Assertion is false but reason is true.
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You all doubt clear in this passage .
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