Which Is Not True About the Process of Demineralization and Remineralization

Which is not true about the process of demineralization and remineralization?

A) Demineralization and remineralization may occur without loss of tooth structure.
B) Demineralization and remineralization always causes loss of tooth structure.
C) Caries is an ongoing process characterized by alternating periods of demineralization and remineralization.
D) Caries develops if more demineralization than remineralization occurs.