(2)
Which is true about the diagram(图表)?
A . The diagram shows there will be a steady (稳固的) increase of global travel over the next few years.
B . Global travel suffered a slight drop every year from 2000 to 2003.
C . The number of tourists increased by 21 million from 2001 to 2002.
D . Tourists from Europe made up half of the total in 2005.