Quad established in 2007, however it was forged in the wake of the 2004 mishap of ________?

A. Wildfires
B. Cyclone
C. Droughts
D. Tsunami

Quad established in 2007, however it was forged in the wake of the 2004 Indian Ocean Tsunami.

Quadrilateral Security Dialogue

The Quadrilateral Security Dialogue, is a strategic security dialogue between Australia, India, Japan, and the United States that is maintained by talks between member countries. QUAD is Known as the ‘Quadrilateral Security Dialogue’ (QSD), the Quad is an informal strategic forum comprising four nations, namely- United States of America (USA), India, Australia and Japan. One of the primary objectives of the Quad is to work for a free, open, prosperous and inclusive Indo-Pacific region.