Multiple AnswersSelect the correct answers regarding the process.

A$.$A child process can share the address space of its parent process, or it can become a separate process.The parent and child processes will run concurrently.

B$.$A program is an executable file and is considered as a passive entity.

C$.$A process is identified using a PID which refers to the program's executable file in the file system.

D$.$A PCB is a large data structure that is stored in the operating system's stack.

E$.$A process is a program in execution and it is an active entity.