Assertion: `beta`-Keto carboxylic acids lose `CO_(2)` when heated of about `370 K`.
Reason : An enol is first formed by loss of `CO_(2)`, but it readily tautomerises to the more stable ketone.
A. If Both assertion and reason are true reason is the correct explation of the assertion.
B. If Both assertion and reason are true but reason is not the correct explation of the assertion.
C. If assertion is true but reason is false.
D. If assertion is false but reason is true.