Answer:
B. Simile
Explanation:
Simile is a thought of comparing one thing with another thing. In this author directly compare two things and finds a similarity between them. This makes a expression more explicit and easy to understand. The comparison makes it easy to decide. In the given sentence the author has compare with an arrow. He tries to convince that if you want to move towards a path go like an arrows. Just as an arrow is unstoppable and reaches its destination quickly without considering the path and environment.
<span>"our fathers brought forth on this continent, a new nation, conceived in liberty, and dedicated to the proposition that all men are created equal. Now we are engaged in a great civil war, testing whether that nation or any nation so conceived and so dedicated, can long endure"</span>