III. Reading Comprehension: 40 points【單選題】每題 2 分，共 20 題，答錯 1 題倒扣 0.5 分，倒扣至本大題零分為止，未作答，不給分亦不扣分。   E-commerce refers to the process of buying or selling products or services over the Internet. It has affected people in manyaspects. For example, while e-commerce helps create many new job opportunities, it also causes job losses. The areas with thegreatest predicted job-loss are retail, postal, and travel agencies. The development of e-commerce will create jobs that requirehighly-skilled workers to manage large amounts of information, customer demands, and production processes. In contrast,people with poor technical skills will have fewer job opportunities. On the other hand, because e-commerce requires sufficientstocks that could be delivered to the customers in time, the warehouse becomes an important element. As a result, more staffmembers are needed to manage, supervise and organize the warehouse to ensure that it functions properly.   E-commerce has also influenced our shopping behavior. For example, it brings convenience for customers as they do nothave to leave home and only need to browse the products online, especially for buying those products not sold in nearby shops.It could also help them buy a wider range of items and save them time. Consumers also gain power through online shopping.They are able to research products and compare prices among retailers. Also, online shopping often provides sales promotionsor discount codes and thus, it is more price-effective for customers. Moreover, e-commerce can even provide more detailedinformation about the products than the in-store staff can. Customers can also review and track their order history online.   However, e-commerce lacks human interactions for customers, which is especially problematic for those who preferface-to-face connection. Customers are also concerned with the security of online transactions and tend to remain loyal towell-known retailers. In recent years, clothing retailers such as Tommy Hilfiger have started adding Virtual Fit platforms totheir e-commerce sites to reduce the risk of customers buying wrong-sized clothes. When customers regret the purchase of aproduct, they need to return the goods and go through the refunding process. It is inconvenient as they need to pack and post thegoods. If the products are expensive, large or fragile, it then involves safety issues.
31. What is the main purpose of the passage?
(A) To introduce how e-commerce might decrease the demand for skilled jobs.
(B) To explain some impacts e-commerce has had on people.
(C) To compare and contrast e-commerce and traditional business.
(D) To warn people to take proper precautions when shopping online.
(E) To illustrate what measures consumers should take to protect their rights.