A small local retailer uses a transaction processing system to keep track of its inventory. Recently, the company's inventory records have been inaccurate, and you have been called in to help figure out what is wrong with the system. The first thing you need to do is determine what kind of transaction processing system the company is using. From speaking to one of the workers who is usually in charge of inventory, you discover that all new inventory that arrives at the store is entered into the system using a UPC scanner. Every time a customer buys an item, the system records the UPC number of the item. Every Wednesday night, the worker in charge of inventory runs a report that takes the number of each item that was on hand at the end of the last inventory period, adds any new arrivals that occurred during the week, and subtracts the number of items that were sold to give an updated inventory number. The transaction processing system that the retailer uses is most likely: an online TPS. an integrated TPS. a batch TPS. an enterprise TPS