using System;
using System.Linq;
public class Program
{
public static void Main()
{
string[,] rectangularArray = new string[3, 3] {
{"a", "b", "c"},
{"d", "e", "f"},
{"g", "h", "i"}
};
int rowNum = 1;
object[] row = Enumerable.Range(0, rectangularArray.GetLength(1))
.Select(col => (object)rectangularArray[rowNum, col])
.ToArray();
Console.Write(string.Join(", ", row));
}
}
/*
run:
d, e, f
*/