**Core Concept**
Benign and malignant tumors differ in their potential for growth, local invasion, and metastasis. Malignant tumors exhibit uncontrolled cell growth, invasion into adjacent tissues, and the capacity to metastasize to distant sites.

**Why the Correct Answer is Right**
The correct answer is a type of tumor that does not exhibit the characteristic features of malignancy, such as uncontrolled growth, invasion, and metastasis. Malignant tumors are typically characterized by their ability to invade surrounding tissues and spread to distant sites, leading to the formation of secondary tumors.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it represents a type of tumor that is known to be malignant in nature. It exhibits uncontrolled cell growth, invasion into adjacent tissues, and the capacity to metastasize to distant sites.
**Option B:** This option is incorrect because it also represents a type of tumor that is known to be malignant in nature. It exhibits uncontrolled cell growth, invasion into adjacent tissues, and the capacity to metastasize to distant sites.
**Option C:** This option is incorrect because it represents a type of tumor that is known to be malignant in nature. It exhibits uncontrolled cell growth, invasion into adjacent tissues, and the capacity to metastasize to distant sites.

**Clinical Pearl / High-Yield Fact**
It is essential to differentiate between benign and malignant tumors, as the treatment and prognosis differ significantly between the two. Benign tumors are typically treated with surgical excision, while malignant tumors may require a combination of surgery, chemotherapy, and radiation therapy.

**Correct Answer: C. Lipoma. Lipoma is a type of benign tumor that is composed of adipose tissue.**