Someone please help me! :)

option D

the era of Chinese independence

Explanation:

The following code is written in Java and creates the two methods as requested each returning the desired double[] array with the averages. Both have been tested as seen in the example below and output the correct output as per the example in the question. they simply need to be added to whatever code you want.

public static double[] rowAvg(int[][] array) {

       double result[] = new double[array.length];

     for (int x = 0; x < array.length; x++) {

         double average = 0;

         for (int y = 0; y < array[x].length; y++) {

             average += array[x][y];

         }

         average = average / array[x].length;

         result[x] = average;

     }

     return result;

   }

   public static double[] colAvg(int[][] array) {

       double result[] = new double[array[0].length];

       for (int x = 0; x < array[x].length; x++) {

           double average = 0;

           for (int y = 0; y < array.length; y++) {

               average += array[y][x];

           }

           average = average / array.length;

           result[x] = average;

       }

       return result;

   }