You are presented with the question "What promotes the division of cells with damaged DNA?" and the following answer choices: 
- PDAs
 - chemicals
 - smoking
 - lmestone
 - A drug.
 - acid rain
 - bacteria
 - cancer

Now knowing that oncogenes promote the division of cells with damaged DNA and oncogenes An oncogene is a gene that is capable of causing cancerous change, choose the best answer.


 

        cancer 