Fact 1: Cancer cells divide more often than normal cells, and grow out of control.

Fact 2: Chemotherapy and radiotherapy target the rapidly dividing cancer cells.

Given the two facts above, answer the question "Chemotherapy and radiotherapy target cells dividing how?" with the following options: 
- They may not survive.
 - an organism's body
 - out of control
 - too slowly
 - out of time
 - survive
 - epidermis and dermis
 - into space


 

   out of control      