Which of the following solutions added to 1L of a 0.01 M `CH_(3)COOH` solution will cause no change in the degree of dissociation of `CH_(3)COOH` and pH of the solution ?
`(K_(a)=1.6xx10^(-5)` for `CH_(3)COOH)`
A. 0.6mM HCOOH `(K_(a)=8xx10^(-4))`
B. 0.1M `CH_(3)COONa`
C. `0.4mM HCl`
D. 0.01M `CH_(3)COOH`
