Choice "A" is correct. A manufacturing company that wanted to be able to "place" material orders more efficiently would utilize EDI for placing those orders and also for other "paperwork" between the company and its vendors.
Choice "c" is incorrect. Electronic check presentment would be used for making payments and would not do anything with regard to the placing of orders.
Choice "d" is incorrect. An automated clearinghouse has to do with the automated clearing of checks and other payments. Again, it would be used for making payments and would not do anything with regard to the placing of orders.
Choice "b" is incorrect. Electronic funds transfer would again be used for making payments and would not do anything with regard to the placing of orders.