Cancer arises from uncontrolled cell growth and division.

Here's why:

* Uncontrolled Cell Growth: Cancer cells ignore the normal signals that regulate cell division and growth. They continue to divide even when there is no need for more cells.

* Uncontrolled Cell Division: Cancer cells lose the ability to control their cell cycle, leading to excessive and abnormal cell division.

While the following statements are often associated with cancer, they are not always true:

* Cancer is always caused by genetic mutations. While mutations are a major driver of cancer, some cancers can be caused by environmental factors (like exposure to carcinogens) or lifestyle choices.

* Cancer is always deadly. Many cancers are highly treatable, and many people live long and healthy lives after receiving treatment.

* Cancer is contagious. Cancer is not contagious. It is not spread from person to person like a virus or bacteria.

Therefore, the statement "Cancer arises from uncontrolled cell growth and division" remains the most accurate and universally applicable description of the core biological principle behind cancer.