Question

Which one of the following would be

considered mainland Southeast
Asia?
A. China
B. Cambodia
C. Japan

Answer 1

Cambodia should be the answer. I am not exactly sure but I am just gonna put it out there anyway!

Answer 2

`\large \boxed{\mathrm{B. \ Cambodia}}`

Step-by-step explanation:

Cambodia is considered a mainland in Southeast Asia.

China and Japan are in East Asia.