I cannot subscribe to my event using reflection

I have a c# desktop app.

I load a DLL using reflection. The DLL is loaded as bytes.

I need to bind to the event in the DLL.

The eventInfo is null.

This is my code:

//in my DLL

namespace injectdll
{
    public class Class1
    {
        public delegate void delResponseEvent(string message);
        public static event delResponseEvent ResponseEvent;
        public static void hello()
        {
            ResponseEvent("hello andy");
        }
    }
}

//in my desktop app

    private void button1_Click(object sender, EventArgs e)
    {
        try
        {
            byte[] bytes = System.IO.File.ReadAllBytes(@"C:\Users\Andrew\Desktop\testbytes\injectdll\injectdll\bin\Debug\injectdll.dll");
            Assembly program = Assembly.Load(bytes);
            Type type = program.GetType("injectdll.Class1");
            MethodInfo Method = program.GetTypes()[0].GetMethod("hello");
            type.InvokeMember("hello", System.Reflection.BindingFlags.InvokeMethod, System.Type.DefaultBinder, "", null);
            var eventInfo = program.GetType().GetEvent("ResponseEvent");

            //eventinfo is null?
        }
        catch (Exception ex)
        {

        }
    }