Choose the correct combination among the following
A) A mixture of weak acid and its salt of strong base acts as acidic buffer
B) As number of moles of acid or base required to change the `P^(H)` of the buffer by one unit increase, the quality of buffer increases.
C) Buffer action is maximum at `P^(H) = P^(Ka)` in case of acidic buffer
A. All are correct
B. A only correct
C. B only correct
D. A only false
