Which four countries are the members of Quadrilateral Security Dialogue (QUAD)?

(A) United States, India, China and Australia
(B) India, China, Russia and United States
(C) Australia, India, Japan and United States
(D) Japan, China, Pakistan and Russia

Answer: C) Australia, India, Japan and United States
Australia, India, Japan and United States are the members of Quadrilateral Security Dialogue (QUAD). The dialogue was initiated in 2007 by Japanese Prime Minister Shinzo Abe.