What cause-and-effect relationship is described in this article?
A. Early skateboarders had some serious accidents because the wheels slid around.
B. California swimming pools were used for skateboarding because skate parks were closed.
C. Early skateboarders came up with the new sport because they were tired of surfing.
D. California swimming pools were empty because skateboarders wanted to use them.
The correct answer is B. California swimming pools were used for skateboarding because skate parks were closed.
Explanation: This option demonstrates a direct cause-and-effect relationship where the closure of skate parks led to the utilization of empty swimming pools for skateboarding, highlighting how circumstances influenced the behavior of skateboarders.