单项选择题

Questions 53 to 56 are based on the following passage: Ryerson Machine Tool Guarantee This guarantee covers all Ryerson industrial tools. Dates of Coverage: All Ryerson industrial tools are guaranteed for 5 years from the date ofreceipt at the customer’s factory or industrial facility. Type of Coverage: This guarantee covers all major tool failures clearly attributable to tool designor construction, and not ordinary wear and tear. This coverage also does not extend to situationswhere the customer has placed the tools under exceptional stress not ordinarily encountered inindustrial processes. Coverage Cancellation: This guarantee plan will be canceled in the case of fraud or misrepresentation by the customer. The notification of cancellation will be sent to the customer’s emailprovided at the time of purchase. Coverage Alteration: This coverage may be altered in the future as newproduct lines are introduced, or upgrades are introduced to existing product lines. Notice of any such alteration will be submitted to all customers by e-mail. Coverage Adjustment Notice: Ryerson Machine Tool Guarantee This supplementary notice is for all customers who have purchased Ryerson machine toolswithin the last two years. Adjustment: Recently, our firm has decided to end sales of the CV210precision cutting tool in use in many of our customer’s factories. Guarantees for these tools will end90 days from the date of this notice. Discounts: Customers desiring to upgrade to our new CV211 precision tool as a replacement forthe CV210 are eligible for 15% discounts for a period of 90 days from the date of this notice. Customers Continuing with CV210: Customers can elect to remain with the CV210, but willhave to operate the tool without coverage from Ryerson. What will happen to users of the CV210 in the future