Write a C program called "writer.c". It uses system I/O calls to create a file called "list1.txt" which has the following text-based content: There are three blanks between the first and the second columns. There is one tab between the second and third, and between the third and fourth columns. You can only call function "write" once. After file "list1.txt" is created, type the following commands to check the content of the file. Make sure you understand how characters are internally saved. more list1.txt > od clist1.txt xd list1.txt Redo question 2 above but this time uses standard I/O calls