Final answer:
Thomas Hobbes would not have supported a direct democracy as he favored a strong authoritarian government to ensure security and order, opposing the self-rule and freedom that direct democracy entails.
Step-by-step explanation:
Based on his teachings, Thomas Hobbes would not have supported a direct democracy. Hobbes's view on government was one that emphasized security and order provided by a strong authoritarian leadership, rather than the freedom and self-rule characteristic of a direct democracy. This contrasted significantly with Jean-Jacques Rousseau, who was a champion of direct democracy, believing in the freedom and self-rule of individuals and that government should be responsive to the 'general will' of the people, an idea aligned with the practices of ancient Greek democracies.
Locke's perspective on government also supported the idea that it should serve the people, protect individual rights, and be founded on the consent of the governed, which helped inspire the representative government found in the United States. In contrast, Montesquieu advocated for separation of powers within a government, but this doesn't inherently oppose direct democracy. Therefore, the philosopher who did not support direct democracy based on the options provided is d. Hobbes.