Below is a basic implementation of the Linux command "cat". This command is used to print the contents of a file on the console/terminal window. #include #include int main(int argc, char* argv[]) { FILE *fp; if(2 != argc) { printf("Usage: cat "); exit(1); } if ((x = fopen(argv[1], "r")) == NULL) { fprintf(stderr, "Can't open input file %s ", argv[1]); exit(1); } char buffer [256]; while (fgets (buffer, 256, fp) != NULL) fprintf(Y, "%s", 2); fclose(fp); return 0; } Which one of the following replacements for X, Y and Z will result in correct execution? O X = fp, Y = stdout, Z = buffer X = buffer, Y = fp, Z = stdout X = buffer, Y = stdout, Z = fp O X = buffer, Y = stdin, Z = fp O X = buffer, Y = fp, Z = fp