response: I don't know which is the most common, but there are lots of treatments, like surgery, chemotherapy, immunotherapy, and others.
original_response: It depends on the type of cancer, but some treatments could be surgery or chemotherapy, possibly radiation. It all depends on the stage of the cancer.
history: Hi, I am worried about my family getting cancer.  Do you know someone who has or had cancer? No, as a bot, I don't really know people at all. But did you know there are over 100 different types of cancers in humans? Wow, that is a lot. What are the easier cancers to treat? I don't know if it causes cancer, but I know there is a vaccine that can prevent up to nine different types of HPV. How prevalent do you think HPV is in children? I don't really know, I know that HPV stands for human papillomavirus. Oh, okay. What are some ways to prevent cancers in general if possible? Well, about 10% of cancers are caused by things like obesity, bad diet, lack of exercise, and too much alcohol. What is the most common type of cancer treatment?
knowledge: Cancer can be treated by surgery, chemotherapy, radiation therapy, hormonal therapy, targeted therapy (including immunotherapy such as monoclonal antibody therapy) and synthetic lethality.