2-C. M: Wow, 75 percent of international students are from China and South Korea.M: Wow, 75 percent of international students are from China and South Korea.
M:うわー、75%は、留学生のダヨ、中国からです、さらに、韓国からダヨ。
3-C. The elderly aged 75 and older showed the second largest increase of 15.%The elderly aged 75 and older showed the second largest increase of 15.%