Final answer:
Transformational leader is the best type of leader for a rapidly changing situation as they motivate and inspire their followers to embrace change and adapt to new circumstances.
Step-by-step explanation:
The best type of leader for a rapidly changing situation would be a transformational leader. Transformational leaders possess attributes such as being charismatic, inspirational, intellectually stimulating, and considerate. They motivate and inspire their followers to embrace change and adapt to new circumstances. This leadership style is effective in rapidly changing situations as it encourages creativity, resilience, and innovation among the group members.