阅读下列短文，从下面每小题的A、B、C、D四个选项中选出最佳选项。
Have you ever had embarrassing moments while travelling in another country? If you do, the following may help you out next time.
▪ Never leave a tip when travelling in Japan
Tipping(给小费) varies from country to country. In one nation, you might be expected to leave a 20% tip to recognize outstanding service at a fancy restaurant, but in another, tipping is something you should never do. In Japan, tipping could be seen as degrading (无礼的).
▪ Never honk your horn while driving in Norway
In Norway, the horn is only used in an emergency, so your unnecessary beeping (鸣笛声) could cause drivers to panic.
▪ Never smile at strangers in Russia
Russians see smiling as a really close gesture. If you smile at strangers, they might consider you insincere.
▪ Never talk with our hands in your pocket in Germany
Planning a trip to Germany? Don't talk with your hands in your pockets because it's considered rude. And you should keep your hands on the table eating, rather than resting them in your lap.
▪ Never use your left hand in India
In India, never use your left hand. The left hand is thought of as unclean in Indian culture, so always use your right hand to greet someone, exchange money, or pick up things.