Future Manufacturing is a private company that makes thermometers for monitoring the temperature of stored meat. Owing to its no-bid contract policy, it does not solicit bids from other suppliers and depends only on the allied services of Pronto Services for its supplies despite Pronto's high rates. This is because of the quality of goods Pronto supplies and its timely delivery policy. This policy is an example of ________. sole sourcing sole sourcing bilateral monopoly downsizing mono bidding