Answer: D

From the way of obtaining catering raw materials, catering procurement methods can be divided into: ① market procurement. That is to say, the purchasing personnel analyze and choose through online information publicity materials or information obtained directly in the market, select several of them as candidate suppliers, ask for quotations, and choose the best supplier through negotiation. (2) bidding and purchasing. That is, the hotel will announce the names and specifications of the raw materials to be purchased to the public by tender or send them to the relevant suppliers by invitation to tender. ③ Fixed-point procurement. That is, the hotel selects the supplier and signs a long-term supply contract with it to ensure the procurement method of the required raw materials. (4) consignment mode. That is, the supplier provides raw materials for the use of the hotel and settles the accounts according to the actual usage.