The correct answer is A. 2 members.
A private company is a company that is owned by private individuals or groups of individuals. It is not owned by the government or by the public. Private companies can be formed by one person or by more than one person. The minimum number of members required to form a private company is two.
Option B is incorrect because a private company does not need to have seven members.
Option C is incorrect because a private company does not need to have ten members.
Option D is incorrect because a private company does not need to have fifty members.