Final answer:
For a newly graduated lawyer like Nick starting his own firm, a hierarchical organizational structure would be most beneficial. It clearly defines roles and authorities, which is essential for a new business for professional conduct and efficient decision-making.
Step-by-step explanation:
Nick, having just graduated from law school and wishing to start his own law firm, would likely benefit most from a hierarchical organizational structure.
Although many organizations are moving towards flatter structures that emphasize teamwork, a hierarchical structure may be better suited to a law firm, especially one just starting out.
This structure clearly defines roles and responsibilities which can be crucial for establishing professionalism and efficient workflows in a new firm. It also allows Nick to establish a clear authority as the head of his firm, which is important for decision-making and setting the direction of the company.
Therefore, the correct answer is 3) Hierarchical.