阅读下列短文, 从每小题所给的四个选项（A、B、C和D）中选出最佳选项。China keeps the same time over all the seasons in a year. But it's different in many countries, like the UK and Germany.
These countries have summer time and winter time. In March, they set (设置) their clocks one hour forward (往前), However, in October or November, they set their clocks one hour back.
In the Northern Hemisphere (北半球), after March 23, days slowly become longer and the sun comes out earlier. During that time, if people wake up earlier, they can use more sunlight (阳光). It saves electricity (电). In the winter, however, they can sleep more in the morning to save electricity.
People working in cinemas dislike setting the clock. They say that when people get more sunlight, they don't want to go to dark cinemas. But baseball lovers like it. When they are in summer time, they can play for a longer time because there is more sunlight.
