Answer:
A. This has been a dream that he has had since he was young.
Step-by-step explanation:
The narrator, Robert Walton, has decided to make this journey in order to find a passage through the Arctic Ocean to the North Pacific Ocean via the seas of the North Pole. Walton is hoping to find a route that will enable him to explore new lands and expand his knowledge. He is also looking for a way to improve himself, as he has failed as a poet and is looking for a way to make something of himself.