Final answer:
The correct answer is C) training, which is one of the personal development strategies outlined by Morrison, Gregersen, and Black for effective global leadership.
Step-by-step explanation:
One of the four personal development strategies through which companies and managers can foster effective global leadership, as outlined by Morrison, Gregersen, and Black, is C) training. This strategy focuses on the development of skills and knowledge that are essential for understanding and leading in a global context. It includes cultural awareness, communication skills, and adapting to diverse environments. Global positioning, might seem relevant, but it does not specifically refer to one of the personal development strategies for global leadership. Hiring and technology can be important aspects of a company's global strategy, but they are not one of the four personal development strategies mentioned by Morrison, Gregersen, and Black for effective global leadership.