I have but one lamp by which my feet are guided; and that is the lamp of experience, what appeal does he primarily use here? A. Ethos b. Pathos c. Simile d. Parallelism

In this part of Patrick Henry’s allusion I recognized parallelism. Usage of parallelism shapes in the sense that author brings to us by explaining and continuing his first sentence with the second. The last sentence emphasize the meaning of previous so we can see the whole idea divided on two parts. That makes clear that those sentences both mean the same and according to the main rules of parallelism, d is the right answer.