During a health promotion seminar for senior citizens, a participant asks the nurse to discuss symptoms of gastric cancer. Which statement should be the basis for the nurseÔÇÖs response?

B Pain from early gastric cancer lesions cannot be reduced by over-the-counter (OTC) histamine receptor antagonists. A Cancers that do not penetrate the gastric muscular layer are asymptomatic in the majority of clients. C Unexplained weight gain and increased body mass index (BMI) are early symptoms of gastric cancer. D Anemia is uncommon in gastric cancer, but if it occurs, it is likely due to the effects of aging.