Calculate sum of 2d array - Java Quiz Question

Define the exceptions such that the program compiles

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What will be the output of the following program.

class CalculateSum 
{
    public static void main(String[] args) 
    {
        int a[][] = {{1, 3, 4}, {2, 3}, {7, 6, 5, 4, 3, 2, 1}, {9}, {8}};
        int sum = 0;
        for(int i = 0; i < a.length; i++)
        {
            for(int j = 0; j < a[0].length; j++)
            {
                sum += a[i][j];
            }
        }
        System.out.println("sum = " + sum);
    }
}

	sum = 58
	sum = 8
	sum = 73
	Compilation Error
	Throws ArrayIndexOutOfBoundsException

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