To what passage are we evaluating? There is no picture or further text for us to observe.
I'd say the answer is A) like rivers, people keep moving and finding new paths.
He wants to say that even black people will manage to find a good future, following a new path, the same way any other human being will.
The other examples do not seem correct to me.
The first statement is a statement of fact because there is no opinion in it
