A Weak Acid,HF,is in Solution with Dissolved Sodium Fluoride,NaF

Multiple Choice

A weak acid,HF,is in solution with dissolved sodium fluoride,NaF.If HCl is added,which ion will react with the extra hydrogen ions from the HCl to keep the pH from changing?

A) OH^-
B) Na⁺
C) F^-
D) Na^-
E) none of these