請依下文回答第 46 題至第 50 題：
        When failing to get a travel companion, some would rather give up or put off their travel plans than travel by themselves.They worry about safety, having no one to talk to, and more expensive accommodations. Indeed, there are potential risksas well as some minor problems when you travel alone. However, the advantages definitely outweigh the downsides.One of the best reasons for solo travel is that you are absolutely free when making any decision. You can do what youwant to do, travel at your own pace, and change your plans without asking anyone. You don’t have to wait for yourcompanion or spend time negotiating where to eat or what time to get up. If you want to stay in bed a little longer, youwon’t feel guilty or annoyed just because your partner has been ready and waiting for you. Furthermore, solo travel is achance for you to listen to your inner voice, to learn to make a decision and to build up your own confidence. Exploringa place leads you to explore yourself at the same time. Without anyone to rely on, you have to be independent and dealwith any challenge. Another thrill of solo travel is to meet new people. It’s easy to meet people on buses and trains andin cafes. Exposure to locals enables you to know more about local cultures.
         If safety concerns still halt you from packing up and setting off, follow the tips below to have a safe trip. First, don’tlook like a tourist. Avoid walking around and reading your guidebook at the same time. Always check your maps beforeleaving your hotel. Second, you have to tell a lie when you have to. Sometimes it is better not to tell others you aretraveling alone: “Excuse me, can you direct me to the train station? I have to meet my friend.” There are also times whenyou have to say “No.” Solo travelers, especially women, tend to draw intense attention in some hospitable cultures.Therefore, it will be wise of you to learn to say “No, thank you” in the local language. With these tips in mind, solo travelcan be a joyful and even life-changing experience.
【題組】46 Which of the following best describes the main idea of this passage?
(A) To travel is to explore yourself.
(B) Solo travel is beneficial and inspirational.
(C) Solo trips are taking the world by storm.
(D) Traveling alone is the easiest way to change one’s life.