A:热带变小、温带变小、寒带变小
B:热带变小、温带变大、寒带变小
C:热带变大、温带变小、寒带变小
D:热带变大、温带变大、寒带变大
—That's great! _______ foreign college students are interested in Chinese learning.
下列说法正确的是( )