Final answer:
Cafeterias account for 20% of the contracts given to managed food service companies in the B&I market.
Step-by-step explanation:
In the B&I market, cafeterias account for 20% of the contracts given to managed food service companies.
Cafeterias are commonly found in schools, businesses, and other institutions, and they provide a variety of meal options to a large number of people.
Additionally, they often offer self-service options and are known for their convenience and affordability.
In comparison, coffee shops, on-site restaurants, and vending machines may also be found in the B&I market, but they may not make up as large of a percentage of the contracts.