Directions: After reading the following passage, you will find. 5 questions or unfinished statements, numbered 36 to 40. For each question or statement there are 4 choices markedA),B),C) andD). You should make the correct choice and mark the corresponding letter on the Answer Sheet with a single line through the center.Wireless phones are available on today’s consumer market. Like most people, you’re probably interested in a little handheld number. They’re small and light. Transmitting (发 送) 0.2 to 0.6 watt of power, these wireless phones come in a variety of models, digital cellular and digital PCS (personal communications service) models, as well as many cool shapes and colors.How do you choose a mobile when two or three models look equally good Think about these characteristics:A big, bright display — The more you use your phone, the more you’ll appreciate an ease-to-read display;Light weight — Most wireless phones these days are tiny, so why take a 10-ounce model when a 6-ounce one works just as wellAccessories (配送) — If you want a certain type of hands-free car kit (成套用具) or other accessory, make sure it’s available for your specific phone;Battery life — Look for a phone that allows you to talk for a long time;External volume control — Take a phone with an external volume control. You’ll appreciate it the first time you use it in a noisy place;Easy ringer volume control — Buy a phone that rings loudly enough for a moderately noisy environment, but is easy to tone down for, say, a funeral. Even better, get a phone with a vibrating alert. Which of the following may be the best title of this passage（）

A. How to Choose a Mobile
B. Advantages of Tiny Mobiles
C. Introduction of Mobiles
Development of Mobiles