I’m working on a Rust project and keep running into different smart pointer types like Rc, Arc, and Box. I understand they’re used for memory management, but I’m confused about the real-world scenarios for each.

• When should I choose Rc over Arc, and vice-versa?
• How does Box fit into this, and how does it differ from Rc/Arc?
• Are there performance differences or multithreading considerations for each option?
• In what cases are raw references preferred instead?

I'd be really grateful if someone could explain the differences in practical terms and provide some example use cases for each.