Fact 1: Mammals breathe with the help of a diaphragm.

Fact 2: Pugs are mammals and mammals shed.

Given the two facts above, answer the question "What breathes with the help of a diaphragm?" with the following options: 
- viruses
 - pugs
 - otters
 - bacteria
 - pigs
 - phytoplankton
 - humans
 - cats


 

  pugs       