need in c language please step by step

Part 1 [75 points]: (2-Dimensional Array Functions) 1. [15 points] Write a function called max that returns the maximum value in the 2d array. 2. [15 points] Write a function called rowSum returns the sum of the elements in Row x of the 2d array. 3. [15 points] Write a function called columnSum returns the sum of the elements in Column x of the 2d array. 4. [15 points] Write a function called isSquare that checks if the array is square (i.e. every row has the same length as the 2d array itself). 5. [15 points] Write a function called displayOutputs that displays the 2 dim-array elements. Part 2 [25 points]: (Testing main) Arrays2D First declare a 2-dim array. How to do that? You need to read the number of rows and the number of columns from the user, and then it reads a corresponding entries to that size. E.g., if a user enters 3 for the number of rows, and enters 3 for the number of columns, then we declare an array of 9 and then read 9 entries and store them in the array. (Remember the Run-time Array Length!). Make calls to all functions in part 01 to match the sample demo below. Make sure you display the same exact messages. Use blank lines to separate outputs and make then more readable. o Look how I printed out the output format below.