The Nurse Is Performing an Assessment on a 65-Year-Old Male

The nurse is performing an assessment on a 65-year-old male patient.He reports a crusty nodule behind the pinna.It bleeds intermittently and has not healed over the past 6 months.On physical assessment,the nurse finds an ulcerated crusted nodule with an indurated base.The preliminary analysis in this situation is that this:

A) is most likely a benign sebaceous cyst.
B) is most likely a keloid.
C) could be a potential carcinoma and should be referred.
D) is a tophus, which is common in the elderly and is a sign of gout.