answer 3- 4 and you will get a thumbs up. Thank you

Enter the read-writer pointer values at the time instants in the following program. You may assume it is executed from the beginning to the end. Assume that the file, "file1.txt", exists and is empty. Enter the Read-Write Pointer (or, file pointer) values at time instants (a) through (f) char * buf1[7]; buf1[0] = ' T '; bufi [1]= ' H '; buff [2]= ' 0 '; bufi[1] = ' U '; bufi [4] = 'G'; bufi [5]= ' H '; bufi [6]= ' T '; char *buf2[7]; int nread, nwrite; fd= open("file1.txt", O_RDWR); (a) nwrite = write (fd, buf1, 4); (b) Iseek(fd, (offset_t) 2, SEEK_SET); (c) nwrite = write (fd, buf1, 5); (d) Iseeek(fd, (offset_t) -4, SEEK_END); (e) nread = read (fd, buf2, 4); (f) 4. What would be the contents of the file, "file1.txt", after the above program in problem 3 is completed. Enter a sequence of characters (case sensitive) into Blackboard "Final Exam Submission." Do not enter any extra characters such as blank or new-line(Enter). For example, your answer may look like THONTHG(6 points)