68.
The answer is: B
Explanation
The correct answer is B: Indonesia.
The G5 is the grouping of emerging economies comprising Brazil, China, India, Mexico, and South Africa.
Indonesia is not a part of this group, although it is a member of the G20, which is a larger group of finance ministers and central bank governors from 19 of the world's largest economies and the European Union. The G5 was formed in 2005 to promote dialogue and understanding between developing and developed countries, and to find common solutions to global challenges.