Q: 4 (CDS-I/2013)

Which one among the following regarding G-20 is not correct ?
In which one of the following groups are all the four countries members of G20 ? (a) Argentina, Mexico, South Africa and Turkey (b) Australia, Canada, Malaysia and New Zealand (c) Brazil, Saudi Arabia and Vietnam (d) Indonesia, Japan, Singapore and South Korea
question_subject: 
General Knowledge
question_year: 
2013
question_exam: 
CDS-I
stats: 
0,1048,1952,1280,856,376,488