Printing object properties values, C#

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//Rextester.Program.Main is the entry point for your code. Don't change it.
//Microsoft (R) Visual C# Compiler version 2.9.0.63208 (958f2354)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Reflection;

namespace Rextester
{
    public class a
    {
        public string a1 {get; set;} = "va1";
        public int a2 {get; set;} = 20;
    }
    
    public class b
    {
        public string b1 {get; set;} = "vb1";
        public int b2 {get; set;} = 40;
    }
    
    public class c
    {
        public string c1 {get; set;} = "vc1";
        public int c2 {get; set;} = 60;
        public a class_a {get; set;} = new a();
        public b class_b {get; set;} = new b();
    }
    
    public class Program
    {
        public static void Main(string[] args)
        {
            c _c = new c();
            GetValues(_c);
        }
        
        static void GetValues(Object obj)
        {
            Type t = obj.GetType();
            PropertyInfo[] properties = t.GetProperties();
			foreach (var property in properties)
			{
                if (property.PropertyType.Name == "a" || property.PropertyType.Name == "b")
				{
                    Console.WriteLine($"--- Properties class: {property.PropertyType.Name} ---");
					GetValues(property.GetValue(obj, null));
				}
                else
                {
                    Console.WriteLine($"Type: {property.PropertyType.Name}  {property.Name} = {property.GetValue(obj, null).ToString()}");
                }
            }
        }
    }
}

Show compiler warnings [ + ] Show input
Compilation time: 0,22 sec, absolute running time: 0,11 sec, cpu time: 0,12 sec, average memory usage: 15 Mb, average nr of threads: 3, absolute service time: 0,37 sec