Fact 1: Cells that divide uncontrollably may form a tumor, or abnormal mass of cells.

Fact 2: Tumors are either benign or malignant.

Given the two facts above, answer the question "How are cells that divide uncontrollably classified" with the following options: 
- Leptospirosis
 - deadly and devastating
 - harmful substances
 - graptolites
 - epidermis and dermis
 - As benign or malignant
 - metabolic reaction
 - microorganisms


 

      As benign or malignant   