The Main Advantage of Nystatin Pastilles Over the Aqueous Suspension

The main advantage of nystatin pastilles over the aqueous suspension is that

A) the pastilles do not contain sugar like the suspension.
B) 15 minutes are required for the lozenge to dissolve in the mouth.
C) the pastilles have twice rather than four times dosing a day as in the suspension,improving compliance.
D) the pastilles are swallowed,whereas the suspension should be spit out.