Which finding in the breast of a client suspected of having breast cancer supports the diagnosis?

A. An inverted nipple can be a sign of underlying malignancy due to tumor pulling on the ducts. B. A mobile mass is more typical of benign breast conditions; cancer masses are often fixed. C. Breast cancer is usually painless in early stages; dull, achy pain is less specific. D. Skin discoloration alone is not definitive for cancer but may be related to other causes.