Read the following statements and choose the correct option 1. Common approaches for treating cancer include surgery, radiation therapy, and immunotherapy. 2. In radiotherapy, tumor cells are irradiated lethally while trying to protect the surrounding normal tissues. 3. Chemotherapeutic drugs are used to kill cancer cells, but many have side effects such as hair loss and anemia. 4. Most cancers are treated using a co

Step-by-step solution

The common approaches for treatment of cancer are surgery, radiation therapy and immunotherapy. In radiotherapy, tumor cells are irradiated lethally, taking proper care of the normal tissues surrounding the tumor mass. Several chemotherapeutic drugs are used to kill cancerous cells. Some of these are specific for particular tumors. Majority of drugs have side effects like hair loss, anemia, etc. Most cancers are treated by combination of surgery, radiotherapy and chemotherapy. Tumor cells have been shown to avoid d