C programming. Beginner level. Input from the user. Write a C program to append multiple lines at the end of a text file. Example:

Assume that the content of the file append.txt is:

line 1

line 2

line 3

line 4

line 5

Enter the file name to be opened: append.txt

Enter the number of lines to be written: 3

Enter 3 lines:

line 6

line 7

line 8

Expected Output:

The content of the file append.txt is:

line 1

line 2

line 3

line 4

line 5

line 6

line 7

line 8