A purchaser issues a request to get the best possible price on a required product or service. This is referred to as a tendered bid. The Supreme Court of Canada has decided that in some circumstances such tendered bids: O a. Must be in a standard form contract. O b. Have no requirement that bidders be treated fairly, as caveat emptor applies. O c. Do not allow for discretion. O d. Cannot be revoked. Oe. Are an invitation to treat which carries with it no legal status