Lidocaine Is Used as a Local Anesthetic and a Cardiac

Lidocaine is used as a local anesthetic and a cardiac depressant.When Lidocaine is administered,it is administered as the alkylammonium salt Lidocaine HCl.Why is the alkylammonium salt,rather than the free amine,used?

A) The alkylammonium salt has a higher solubility in water and bodily fluids than the free amine.
B) The alkylammonium salt is not as addictive as the free amine.
C) The alkylammonium salt is more basic than the free amine.
D) The alkylammonium salt is a gas at room temperature and can be readily inhaled.
E) None of these are correct.