Write a C program in /app/fork posix.c that demonstrates fork() as follows: the child prints its own PID…

Write a C program in /app/fork posix.c that demonstrates fork() as follows: the child prints its own PID…: a task in rts-1k-rootless-apptainer: RTS-1K: offline rootless Apptainer release (Harbor dataset). What the agent is asked, how it is graded, what it runs in, and its files.