2 Number regions represents East Asia. China, Mongolia, North Korea, South Korea, Japan, Hong Kong, Taiwan, and Macau are the eight countries and areas that make up East Asia.
East Asia's highland environment is characterised by hot, rainy summers that support a diverse range of temperate and tropical plants.
As a result, the number 2 on the map represents the region of East Asia with a highland climate.
Thus, option B is correct.
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