Statement: The elementary reaction is single step reaction and does not possess mechanism.
Explanation: An elementry reaction has order of reaction and molecularity same.
A. (a) `S` is correct but `E` is wrong
B. (b) `S` is wrong but `E` is correct
C. (c ) Both `S` and `E` are correct and `E` is correct explanation of `S`
D. (d) Both `S` and `E` are correct but `E` is not correct explanation of `S`.