Vietnam is part of the
a. indochina peninsula.
c. malay archipelago.
b. malay peninsula.
d. dutch east indies.

Vietnam is part of the Indochina. The Malay archipelago is composed by Malaysia, Singapore, Indonesia and New Guinea.
Malay peninsula is composed by Myanmar, southern Thailand and the Peninsular Malaysia.
Dutch East Indies is the name of Indonesia when it was a colony

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