Given the task definition and input, reply with output. In this task you are given a small conversation between two persons and 4 options on how the conversation should continue. Your job is to choose the most reasonable option. The conversation and the options are separated by a newline character. Each dialogue in the conversation are separated by a comma. F and M indicate female and male, respectively.

F: Ladies and gentlemen, we'll pay a visit to a cave tomorrow. ,M: What fun is it to visit the cave you mean? ,F: It's an uncommon cave. It's underground, wide and long and in the cave there's rocks of different shapes which looked like a lion, a tree, a bell or something else. ,M: What else can we do there besides seeing the rocks? ,F: There's a stream running through the cave. You can row boats there. ,M: How will we get there and will it take a long time? ,F: About 60 miles away from here. First, we get to the town nearest to the cave in a passenger car and then we take an about 15 minute walk. ,M: May I understand that the cave is in a place far from the town? ,F: Not really. Since the ground is not strong, it's impossible to build roads or railways.
(A) M: Why local people disagree on building roads leading to the cave? It is good for them since more tourists will go and spend money there. (B) M: Because roads or railways can not be built on the ground that is not strong, so it will take much more time to get to the cave, right? (C) M: I didn't hear you. Please could you tell me again? (D) M: It is impossible to build roads or railways leading to the cave because the local government can not afford it. So we will go there by ship.
B