The first truly mobile phone call was made in the 1970s. It would take years before that technology was made available to the average customer. Mobile phones began to be sold by several different companies in the 1980s. The first cell phones that were available for sale were heavy, with some weighing over two pounds. Their battery life left a lot to be desired. Some of the first cell phones took around ten hours to charge and could only be used for was very easy for people to use a scanner in order to listen in on calls made on some of the first cell phones. The technology of cell phones eventually began to advance. Cellular networks soon become more reliable and secure. Cell phones quickly became smaller and cheaper. Cell phones also began to offer a longer lasting battery. What was once considered a luxury item for the very wealthy soon became available to all customers. Despite this, cell phones were not considered a necessity throughout the 1980s and 1990 and did not replace landlines.
1. Which quote from the passage BEST supports the inference that cell phone service providers knew providing a secure line was important to customers?
A. “…it was very easy for people to use a scanner in order to listen in on phone calls…”
B. “The technology of cell phones eventually began to advance.”
C. “Cellular networks soon became more reliable and secure.”
D. “Cell phones quickly became smaller and cheaper.”
2. What inference can be made about landlines?
A. During the 1980s and 1990s, people were looking for an alternative to landlines.
B. Landlines were considered a more reliable method of communication in the 1980s and 1990s.
C. The majority of people did not have a cell phone or a landline.
D. Most people did not feel that landlines were reliable enough to replace cell phones.