Question

what is cancer? a disease characterized by uncontrolled cell growth a disease where cells fail to divide at all a process by which a cell pinches together in the middle to separate into two individual cells a state where cells perform their normal functions without preparing to divide

Explanation:

Cancer is a disease. It occurs when cells in the body grow and divide without control. This is different from normal cell behavior. Normal cells grow, divide, and die in an orderly way. But cancer cells keep growing and forming tumors (except in blood cancer where abnormal cells flood the blood).
The second option is wrong because cancer cells divide too much, not fail to divide. The third option describes cytokinesis (a normal cell - division process). The fourth option describes a normal non - dividing state of cells (like G0 phase in the cell cycle).

Answer:

A. A disease characterized by uncontrolled cell growth