A、Give others freedom to express themselves. B、Expose themselves to different cultures. C、Discard personal biases and prejudices

Analytical skills are our ability to understand and solve problems using information we have available. These skills are extremely important for our professional, social, and intellectual lives. What are the best ways to improve them? One way is to expand your world view. Unfortunately, this takes time. Ultimately, it will help you better evaluate information and analyze different ideas and outcomes. Travelling is a great way to expand your world view, although it can be expensive.
   An entertaining way of enhancing your analytical skills is to engage them by playing brain games. These are games that challenge you to think deeply and to develop your analytical skills. These games will get you used to thinking in a certain way. As a result, they will help improve your ability to think. However, opinions vary on whether video games are effective. The general consensus is that the best ones avoid mindless violence, and instead focus on strategy and challenge us to solve problems and achieve broad goals.
   Joining a debate or reading club or group is also a good idea. This provides people with the opportunity to come together and discuss ideas, literature and problems. Groups like these will help you refine your analytical skills and enable you to express yourself better. Any social group that encourages free exchange of ideas and pursuit of knowledge is beneficial. It helps you to actively develop your analytical skills.
Questions 16 to 18 are based on the passage you have just heard.
16. What kind of ability do analytical skills refer to in the passage?
17. What does the passage say is an entertaining way of enhancing one’s analytical skills?
18. What else does the speaker advise people to do to improve their analytical skills?