如何在C#中创建动态键盘按钮电报机器人？

Install-Package Telegram.Bot

using System;
using Telegram.Bot;
using Telegram.Bot.Args;
using Telegram.Bot.Types;
using Telegram.Bot.Types.ReplyMarkups;

class Program
{
    private static TelegramBotClient botClient;

    static void Main()
    {
        botClient = new TelegramBotClient("YOUR_API_TOKEN");
        botClient.OnMessage += Bot_OnMessage;
        botClient.StartReceiving();

        Console.WriteLine("Bot started. Press any key to exit.");
        Console.ReadKey();

        botClient.StopReceiving();
    }

    private static async void Bot_OnMessage(object sender, MessageEventArgs e)
    {
        if (e.Message.Text == "/start")
        {
            var replyMarkup = new ReplyKeyboardMarkup
            {
                Keyboard = new[]
                {
                    new[]
                    {
                        new KeyboardButton("Button 1"),
                        new KeyboardButton("Button 2")
                    },
                    new[]
                    {
                        new KeyboardButton("Button 3"),
                        new KeyboardButton("Button 4")
                    }
                }
            };

            await botClient.SendTextMessageAsync(
                chatId: e.Message.Chat.Id,
                text: "Choose an option:",
                replyMarkup: replyMarkup
            );
        }
    }
}