The 'Arria Formula' which was recently in news is

an informal arrangement at the U.N. Security-Council under which members can seek briefings on various issues concerning international peace and security.

A formula suggested by the Mexico to solve Kashmir problem with the help of some third party mediation.

The solution provided by some countries to overcome the problems created by the new policies of the WTO.

The agreement made by the member countries of EURO club to overcome the problems created by the introduction of fully covertible EURO currency from 1st January 2002.

None of these