In which one of the following groups are all four countries members of G20?

1. A. Argentina, Mexico, South Africa and Türkiye
2. B. Australia, Canada, Malaysia and New Zealand
3. C. Brazil, Iran, Saudi Arabia, and Vietnam
4. D. Indonesia, Japan, Singapore and South Korea.

Answer: A

Explanation

The G20 (or Group of Twenty) is an international forum for the governments and central bank governors from 19 countries and the European Union (EU). It was founded in 1999 with the aim to discuss policy pertaining to the promotion of international financial stability. The members of the G20 are Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Italy, Japan, the Republic of Korea, Mexico, Russia, Saudi Arabia, South Africa, Türkiye, United Kingdom, United States, and the European Union. Hence option (a) is the correct answer.