Which of the following countries is/are part of the Afghan quad group?

Which of the following countries is/are part of the Afghan quad group?

A. US

B. Afghanistan

C. Pakistan

D. All of these

Explanation:

The US, Afghanistan, Pakistan and Uzbekistan have agreed in principle to establish a new quadrilateral diplomatic platform focused on enhancing regional connectivity. The parties consider long-term peace and stability in Afghanistan critical to regional connectivity and agree that peace and regional connectivity are mutually reinforcing.