Final answer:
Lev and his travel companion are going to Italy, which means they are traveling to another country.
Step-by-step explanation:
Based on the excerpt provided, Lev and his new travel companion are heading to Italy. Although it is not directly stated if they are going to the mountains, to the beach, to a city, or to another country, the conversation suggests they are traveling to another country, making option D) To another country, the correct answer. When Winterbourne inquires about crossing the Simplon, he is asking if they will cross one of the routes through the Alps, which indicates their route includes traversing mountains on their way to Italy. However, the young lady and Randolph do not seem certain about the specifics of their itinerary.