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

Fact 2: About mushrooms Mushrooms are the fruiting structure of fungi.

Given the two facts above, answer the question "Which part of fungi have humans collected and grown for food for thousands of years?" with the following options: 
- more abundant
 - by indirect light
 - remains of prehistoric life
 - it keeps an organism warm
 - epidermis and dermis
 - Organic compounds
 - loose soil
 - fruiting structure


 

        fruiting structure 