Final answer:
The tissue in which a cancer originates is called carcinoma, which originates from epithelial cells. A biopsy is performed to diagnose cancer by examining a tissue sample under a microscope.
Step-by-step explanation:
The tissue in which a cancer originates or the primary site is called the carcinoma. Carcinoma is a type of cancer that originates from epithelial cells, which are found in the lining of various organs in the body, such as the breast, prostate, lung, and colon.
When making a definitive diagnosis of cancer, a biopsy is performed. The biopsy involves examining a tissue sample from the patient under a microscope. Cancers are classified and named based on the type of tissue where the cancer began.
Therefore, the correct answer to your question is option c) Carcinoma.