Which of the following is thought to have tumor-promoting characteristics? select one: a. helicobacter pylori b. estrogen c. testosterone d. hepatitis b virus e. all of the above

A) Helicobacter pylori

Explanation:

  Helicobacter pylori is the characteristics of tumor promoting which contain microaerophilic bacterium in stomach. It is also developed for the stomach cancer and the duodenal ulcers. Basically, it is the type of bacteria and enter in our body and destroy our digestive tract and lead infection in stomach. After some times they caused sores in stomach, upper part in small intestine.

answer; /// an alphabetical list of sources arranged according to a citation style and followed by a summary of the content;