The function of the image is:
b
The image explains why Livingstone was inspired by Joseph Banks to explore Africa.
Step-by-step explanation:
The image that is presented here is one of the explorer that is Joseph Banks exploring in his time and then inspiring people with similar ambitions to do so on their own.
This continuation of tradition in a way is helped along by listing of the achievements of the predecessor that the one who comes after would have read and thought about.
Thus the visualization serves as a recount of what has already been done in the field that is being talked about.