Answer: A consortium
Explanation:
A consortium is one of the type of group that is specifically made by combing two and more than two organization or companies and the main purpose of a consortium is to improve and grow the various types of economic.
The main objective of a consortium is that it helps in achieving the main goal of an organization and also creating the legal entities so that it helps in facilitating the various types o business in the country.
According to the given question, a consortium is one of the partnership between the two members ad companies and it is also known as the private agreement.
Therefore, A consortium is the correct answer.