Read the article and select the best answer. Article: IWFU is short for "I want to find you", and is an-easy-use Internet program which makes communication online easy. With IWFU, you can chat, send messages, play games and surf the Internet with your friends, and much more. With just a click of your mouse, you and your friends are connected at once. Using IWFU is simple. When you install IWFU, the program asks you to register . When you register, you receive a special IWFU number. You can also enter information about yourself which allows other IWFU users to recognize you when you log on. Once you've registered, you can make a list of your IWFU friends. IWFU will then use the list to identify your friends. As soon as you log onto the Internet, IWFU will let people know that you are online. Whether you are in Asia or Europe, in the United States or China, you can access your friends from anywhere and at any time through IWFU. Question: IWFU uses friends list to _ . Options: A: identify the user's friends B: store information C: collect the user's data D: log on the Internet
A:
A