Assertion : `HCOOH` formic acid add react with `H_(2)SO_(4)` to form `CO`.
Reason : `H_(2)SO_(4)` is mild (moderate) oxidizing agent.
A. If Both assertion and reason are true reason is a true explation of the assertion.
B. If Both assertion and reason are true but the 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.
