If humans have collected and grown the fruiting structure of fungi for food for thousands of years, then which part of fungi have humans collected and grown for food for thousands of years?

Answer choices:
- 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  