单选题
Because the Internet (71)________________ computers all over the world，any business that engages in electronic commerce instantly becomes an intemational business．One of the key issues that any company faces when it conducts international commerce is trust． It is important for all businesses to establish (72)________________ relationships with their customers．Companies with established reputations in the physical world often create trust by ensuring that customers know who they are．These businesses can rely on their (73)________________ brand names to create trust on the Web．New companies that want to establish online businesses face a more difficult (74)________________ because a kind of anonymity(匿名)exists for companies trying to establish a Webpresence． Because Web site visitors will not become customers unless they trust the company behind the site，a plan for establishing (75)________________ is essential．Customers’inherent lack of trust in“strangers”on the Web is logical and to be expected；sellers on the Web cannot assume that visitors will know that the site is operated by a trustworthy business．