Arrays, C#.NET

Arrays

Question: Which are correct rectangular array declaration in C#?
A
in[,] matrix=new int[3,3];

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

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

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

Note: Not available
1. Report
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} };

Note: Not available
1. Report

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