Fact 1: Smoking tobacco decreases stamina.

Fact 2: Tobacco is smoked in pipes or in cigarettes or bidis.

Given the two facts above, answer the question "What decreases stamina?" with the following options: 
- cleaning pipes
 - liver cancer
 - viruses
 - smoking meat
 - smoking pipes
 - smoking volcanoes
 - Dehydration
 - harmful substances


 

     smoking pipes    