Compound `(F)` is used as an artificial sweetner and is known as saccharin. It forms sodium salt. Which statement is correct about its sodium salt ?
A. `(F)` has an acidic `H` atom and its conjugate base is delocalised to `(C=O)` group.
B. `(F)` has an acidic `H` atom and its conjugate base is delocalised to `(SO_2)` group.
C. Both statements `(a)` and `(b)` are correct.
D. `(F)` does not have an acidic `H` atom.