Fact 1: Infection can cause bodily tissues to swell.

Fact 2: Doctors call such tissue swelling edema.

Given the two facts above, answer the question "What can infection cause in bodily tissues?" with the following options: 
- edema
 - better breathing
 - anemia
 - healing
 - viruses
 - mildew
 - wrinkling of cells
 - death


 

 edema        