Answer:
b. The beliefs and characters of individual leaders play a large role in shaping history.
Step-by-step explanation:
The great man theory is a 19th-century idea according to which history can be largely explained by the impact of great men, or heroes; highly influential and unique individuals who, due to their natural attributes, such as superior intellect, heroic courage, or divine inspiration, have a decisive historical effect. I think that can be the answer.