The correct answer is D. Flexible organization.

A line organization is a simple organizational structure in which authority flows from top to bottom in a straight line. A functional organization is a type of organizational structure in which employees are grouped according to their specialized skills or knowledge. A line and staff organization is a hybrid of the line and functional organizations, in which line managers have authority over the work of their subordinates, while staff managers provide advice and assistance to line managers. A flexible organization is a type of organizational structure that is designed to be adaptable to change.

A line organization is a simple organizational structure in which authority flows from top to bottom in a straight line. The president or CEO is at the top of the organization, and each level of management is responsible for the level below it. This type of organization is often used in small businesses or businesses with a simple product or service.

A functional organization is a type of organizational structure in which employees are grouped according to their specialized skills or knowledge. For example, a functional organization might have departments for marketing, sales, finance, and human resources. This type of organization is often used in large businesses or businesses with a complex product or service.

A line and staff organization is a hybrid of the line and functional organizations, in which line managers have authority over the work of their subordinates, while staff managers provide advice and assistance to line managers. Line managers are responsible for the day-to-day operations of the organization, while staff managers provide support services such as accounting, marketing, and human resources. This type of organization is often used in medium-sized businesses or businesses with a complex product or service.

A flexible organization is a type of organizational structure that is designed to be adaptable to change. This type of organization is often used in businesses that operate in a rapidly changing environment. Flexible organizations are typically characterized by a flat organizational structure, a high degree of employee empowerment, and a focus on teamwork.