What type of tumor is capable of spreading to other parts of the body?

The type of tumor capable of spreading to other parts of the body is defined as cancer. Cancerous tumors, which can originate in various tissues, have the ability to invade surrounding tissues and metastasize, meaning they can travel through the bloodstream or lymphatic system to establish new tumors in different organs. This characteristic distinguishes cancer from benign tumors, which do not spread and are generally considered non-invasive.

The term "malignant" is often used to describe cancers that display this aggressive behavior. Carcinomas, which are a type of cancer arising from epithelial cells, are indeed capable of spreading, but "cancer" is a broader term that encompasses all malignant tumors, including carcinomas as well as others like sarcomas and lymphomas. Non-cancerous refers specifically to tumors that are benign and do not have the propensity for metastasis, reinforcing why the correct choice centers around cancer as the answer.