//main file #include "brian.h" #include "jeff.h" #include "steve.h" int main ( ) { brian * BRIAN; BRIAN = new brian(); brian * BRIAN2; BRIAN2 = new jeff(); brian * BRIAN3; BRIAN3 = new steve(); BRIAN->speak(); // no problem, right? BRIAN2->speak(); // how about this? BRIAN3->speak(); // can I do this? return 0; }