A. Bujumbura
B. Phnom penh
C. La paz
D. Port-Novo
Submitted by: Farhan Rana
Vientiane (Viangchan), the capital of Laos, and Phnom Penh, the capital of Cambodia, both stand on its banks. About three-fourths of the drainage area of the Mekong lies within the four countries the river traverses on its lower course—Laos, Thailand, Cambodia, and Vietnam.
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