which are correct jagged array declaration in c, Arrays, C#.NET

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Question:Which are correct jagged array declaration in C#?

A int[][] matrix=new int[3][]; 
B int[][] matrix={
 new int[]{0,1,2},
 new int[]{3,4,5},
 new int[]{6,7,8}
}; 
C int[,] matrix=new int[,] 
D var matrix=new int[][]{
 new int[]{0,1,2},
 new int[]{3,4,5},
 new int[]{6,7,8}
};

+ AnswerA B D

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Question:Which are correct jagged array declaration in C#?

A int[][] matrix=new int[3][];

B int[][] matrix={ new int[]{0,1,2}, new int[]{3,4,5}, new int[]{6,7,8} };

C int[,] matrix=new int[,]

D var matrix=new int[][]{ new int[]{0,1,2}, new int[]{3,4,5}, new int[]{6,7,8} };

A B D