Which one of the following statements best describes the ‘Polar Code’?

It is the international code of safety for ships operating in polar waters.

It is the agreement of the countries around the North Pole regarding the demarcation of their territories in the polar region.

It is a set of norms to be followed by the countries whose scientists undertake research studies in the North Pole and South Pole.

It is a trade and security agreement of the member countries of the Arctic Council.