Hello!
There are two types of tumors, which are benign and malignant tumors.
Benign tumors are tumors that do not invade its surrounding tissue or spread around the body. It grows slowly. Malignant tumors are tumors that invade the surrounding tissue and spreads around the body. This type of tumor grows rapidly.
So therefore, the answer is B, tumors that grow fast and spread to neighboring tissues.
Answer: Controller
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