Choose the letter A, B, C or D to complete the sentences:
Brunei Darussalam joined ASEAN on 7 January 1984, Viet Nam joined _________ 28 July 1995, Lao PDR and Myanmar on 23 July 1997, and Cambodia on 30 April 1999.

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ATNETWORK
ADMICRO
YOMEDIA
ZUNIA9