Which of the following statements is incorrect?The three approaches to order fulfillment are make$-$to$-$stock, make$-$to$-$order, and assemble$-$to$-$order.In ATO, finished products are stored in inventory and immediately available for delivery.Sometimes there are parts shortages or different orders waiting on the same machine.ATO is a hybrid system in which product components are MTS but assembled only when order is placed.MTS can provide faster service to customers than MTO or ATO.