Fact 1: Humans have collected and grown mushrooms for food for thousands of years.

Fact 2: Yeast and mushrooms are types of fungus.

Given the two facts above, answer the question "What have humans collected and grown for thousands of years?" with the following options: 
- Organic compounds
 - types of coral
 - types of ferns
 - bioaerosols
 - Most plants
 - types of fungus
 - types of pine trees
 - peachleaf willow


 

      types of fungus   