The differences between Non-traditional and Traditional notions of security are:
1. Focus: Traditional security focuses on military threats and state sovereignty, while Non-traditional security emphasizes human security, including economic, environmental, and health-related issues.
2. Actors: Traditional security primarily concerns the state and its military, whereas Non-traditional security involves a broader set of actors, including international organizations, non-state actors, and civil society.
3. Scope: Traditional security is more concerned with the preservation of territorial integrity and political sovereignty, while Non-traditional security considers broader threats such as pandemics, climate change, and terrorism.
Thus, the correct answer is (b).