Assertion: The kinetic of the reaction\[mA+nB+pC\to \]\[m'X+n'Y+p'Z\]obeys the rate expression as\[\frac{dx}{dt}=k{{[A]}^{m}}{{[B]}^{n}}\]. Reason: The rate of the reaction does not depend upon the concentration of C. Read the assertion and reason carefully to mark the correct option out of the options given below:

• A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
• B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
• C. If assertion is true but reason is false.
• D. If the assertion and reason both are false.
• E. If assertion is false but reason is true.