The correct answer is: A. organization
An organization is a group of people who work together to achieve a common goal. It is a structure of relationships that is designed to coordinate the efforts of its members and to achieve its objectives. Organizations can be formal or informal, and they can be large or small.
A function is a specific task or activity that is performed by an organization. Functions can be grouped into different categories, such as production, marketing, and finance.
A team is a group of people who work together to achieve a common goal. Teams can be formal or informal, and they can be large or small.
Group effort is the collective work of a group of people towards a common goal. Group effort can be used to achieve a variety of goals, such as completing a task, solving a problem, or making a decision.
In conclusion, the correct answer is A. organization. An organization is a structure of relationships that is designed to coordinate the efforts of its members and to achieve its objectives.