Online shopping is one ___(1)___ the fastest growing areas of the Net, ___(2)___ offers users many advantages over traditional shopping. Customers have access to a wider range of the best goods than in any shopping centre; there are no queues or parking problems; 'shops are open 24 hours ___(3)___ day and purchases are delivered to your door. What is more prices and competitive, and online price comparision services enable you to find the most suitable items. ___(4)___ sites search the net for a product and then show you how much di. stores are charging. Once you have decided what you are going to buy, and who you are going to buy it from, simply click on the 'add to shopping basket' ___(5)___ on your smart phone.

• A. who
• B. which
• C. whose
• D. whom