Picture of RPD for patient 60 years complain began when she received the denture pain in the retainers and all teeth also when the dentist remove the denture there is multiple tissue ulcers under the fitting surface

Picture of RPD for patient 60 years complain began when she received the denture pain in the retainers and all teeth also when the dentist remove the denture there is multiple tissue ulcers under the fitting surface and pulp exposure in one of the retainer 

What is the problem with that denture: 

a. Fitting surface need to be relived ***

b. Denture design haven't stress breaking action

C. no rest support