How to reverse characters of words in a sentence??

class Program
{
static void Main(string[] args)
{

Console.WriteLine("Please Enter a sentence to reverse");
string s = Convert.ToString(Console.ReadLine());
Program p = new Program();
string result = p.reverse(s);
Console.WriteLine("Result is {0}", result);
Console.ReadLine();

}
public string reverse(string s)
{
string[] arrays = s.Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);

foreach(string word in arrays)
{
char[] arr = word.ToCharArray();
Array.Reverse(arr);
string rev = new string(arr);
arrays = arrays.Select(q => q.Replace(word, rev)).ToArray();
}

string reversedstring = string.Join(" ", arrays);
return reversedstring;
}
}