Which of the Following Is True of In-Office Care of a Complete

Which of the following is true of in-office care of a complete denture?

A) Patients will not form calculus on a denture.
B) Calculus can be removed by placing the prosthesis in a denture cleaning solution inside a zippered bag placed in an ultrasonic cleaner.
C) It is helpful for the patient if teeth and the acrylic base are worn down during the polishing process.
D) Tissue-bearing surfaces of the complete denture should be polished during cleaning.