please answer all 3 quickly! will thumbs up thanks

Which of the following is not an objective of the purchasing function? O a. Maintain a qualified purchasing staff and develop professional capabilities of that staff O b. Purchase materials and services that comply with engineering and quality standards O c. Find the lowest-cost product or service for every requirement O d. Support all corporate objectives and policies e. Promote buyer-supplier relations and encourage supplier contribution Which of the following is not a supplier measurement decision? O a. What did the business spend its money on over the last year O b. How to measure the relevant variables O c. What variables to measure O d. What resources will be required to collect the information Which of the following is not a supply management responsibility? O a. Supplier performance measurement and improvement O b. Negotiation and contracting O c. Providing material requisitions to buyers O d. Supply market research O e. Supplier intification and selection