Q: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Soon the group comes to an area with mountains in the background. At one point, a truck is riding alongside them. the group <sep> (A) is shown riding in a city car. (B) rides along a rapid river with several funny ducks on the side. (C) then comes to a beach area, with mountains in the background. (D) continues skiing and then arrives at their highest point.
A:
C