Questions 175-176 refer to the following memorandum. MEMORANDUM To: All staff From: Brian Candler (B.Candler@pobox.com) Delivery date: Mon, 28 May 2007, 13:47:03 Subject: Long-distance calling instructions Next month, there will be an important change to the way we make long-distance telephone calls. This should help provide extra security for our telephone systems. Your authorization number will go from four digits to five digits in length. A "3" will be added to the start of your authorization number. For example, if your number was "1234" , it will change to "31234" . Remember that if you have automatic telephones or fax machines, they will have to be reprogrammed. * The authorization number is not necessary when making local calls. Why is the change outlined in this memo made
A. To reduce costs B. To adapt to a new phone system C. To increase the security of the communication system D. To provide automatic dialing