When a salt is formed from a weak acid and a strong base, the resulting solution is basic. This is because the strong base dissociates completely, and the conjugate base of the weak acid (present in the salt) hydrolyzes to form \( OH^- \) ions, making the solution basic. The pH of such a solution is typically greater than 7, as the concentration of \( OH^- \) ions will make the solution alkaline. In this case, the pH is approximately 9.
The correct option is (B): 9