According to the Model of Country Concept,which component might be under the control of a person or agent that might have power to influence a nation's image?

A) natural disasters
B) international politics
C) historical relationships between countries
D) public diplomacy

The component under the control of a person or agent that might have power to influence a nation's image is public diplomacy. Public diplomacy refers to the efforts made by a country's government to communicate with foreign publics in order to promote its national interests and improve its image abroad. This can include cultural exchanges, media outreach, and educational programs, among other things. Other components mentioned in the question, such as natural disasters, international politics, and historical relationships between countries, are outside of an individual's control and less likely to be directly influenced by public diplomacy efforts.