Please help me to solve this problem. C# language

Programming Exercise 7-8 DInstructions CountVowelsModularized.cs 1 1 using System; 2 using static System.Console; 3 class CountVowelsModularized Write a program named CountVowelsModularized that passes a string to a method that returns the number of vowels in the string. 5 public static void Main) 7 Write your main here Note: For testing purposes, Y will not be counted as a vowel. 9 public static int CountVowels (string phrase) 18 11 Write your CounVowels method here 12 13 Grading When you have completed your program, click the Submit button to record your score