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AP Computer Science A/Unit 8: 2D Array
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2D Array Column Extraction

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Consider the following code segment.

int[][] numbers = {{10, 20, 30}, {40, 50, 60}, {70, 80, 90}, {100, 110, 120}};
int[] myArr = mystery(numbers, 1);
for (int j: myArr)
   System.out.print(j + " ");

public static int[] mystery(int[][] arr, int n)
{
   int[] m = new int[arr.length];
   for (int i = 0; i < arr.length; i++)
      m[i] = arr[i][n];
   return m;
}

What is printed as a result of executing the code segment?

A

40 50 60

B

10 40 70 100

C

20 60 80 110

D

20 50 80 110

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