Assertion :Chain isomerism is observed in compounds containing four or more than four carbon atoms. Reason: Only alkanes show chain isomerism.
-If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
-If both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
-if Assertion is correct but Reason is incorrect.
-If Assertion is incorrect but Reason is correct.
