In processing an acrylic denture in a water bath, a proper heating cycle is desired because of the possibility of.. shrinkage of the denture

In processing an acrylic denture in a water bath, a proper heating cycle is desired because of the possibility of:
a) warpage.
b) shrinkage of the denture.***
c) porosity due to boiling of the monomer.
d) crazing of the denture base around necks of the teeth.