What Will Happen If a Small Amount of Hydrochloric Acid

Multiple Choice

What will happen if a small amount of hydrochloric acid is added to a 0.1 M solution of HF?

A) The percent ionization of HF will increase.
B) The percent ionization of HF will decrease.
C) The percent ionization of HF will remain unchanged.
D) K_a for HF will increase.
E) K_a for HF will decrease.