Write a program to open a file for reading that has twenty (20) rows and in each row there are three (3) columns. After reading each row call a user-defined function to display each row and average of each row as follows and print the results on the monitor. Assume all the numbers are integer. If the file can't be opened you should prompt "Invalid file" and exit. (24 points)
Row 1: 2 3 4 and Average = 3
Row 2: 7 8 0 and Average = 5