What's true about OOP in C++? o One class per .hl.cpp file combination:

a. "this" is a pointer in C++ and therefore we use -> to access from it
b. In C++ structs are fully OOP but it changes the base assumption of visibility from private to public
c. Generally follows a pattern of forward declaration in a .h file and definitions in a .cpp file
d. We can directly deference this to use the dot-operator similar to Java: *this.doStuff()