/tmp/datafile contains lowercase alphabet: abcdefghijklmnopqrstuvwxyz

program executes code fragment below. Assume all function calls are successful and parents wait() for the child blocks parent until child exits.

what best describes the output of the program? a. bbac b. babb c. adcd d. babc e. string cant be determined f. none of the above

int fd; char ch; fd=open("/tmp/datafile", O_RDWR); read(fd,&ch,1); read(fd,&ch, 1); if(fork()==0X fd=open(/tmp/datafile", O_RDWR); write(1,&ch,1); read(fd,&ch,1); write(1,&ch,1); read(fd,&ch,1); exit(0); } wait(NULL); write(1,&ch,1); read(fd,&ch,1); write(1,&ch,1); exit(0)