Question: using System; using System.Collections.Generic; public abstract class Product { public int Id { get; set; } public string Name { get; set; } public decimal

using System;
using System.Collections.Generic;
public abstract class Product
{
public int Id { get; set; }
public string Name { get; set; }
public decimal Price { get; set; }
public int Quantity { get; set; }
}
class Book : Product
{
public string Author { get; set; }
public string Title { get; set; }
public string Size { get; set; }
}
class Electronics : Product
{
public string Brand { get; set; }
public string Device { get; set; }
}
class Magazines : Product
{
public string Size { get; set; }
public string Title { get; set; }
}
class OrderItem
{
public Product Product { get; set; }
public int QuantityOrdered { get; set; }
}
class Customer
{
public int Id { get; set; }
public string Name { get; set; }
}
class Order
{
public int OrderId { get; set; }
public Customer Customer { get; set; }
public List Items { get; set; }
public Order()
{
Items = new List();
}
}
public class Inventory
{
private List products;
public Inventory()
{
products = new List();
}
public void AddProduct(Product product)
{
products.Add(product);
}
public void RemoveProduct(Product product)
{
products.Remove(product);
}
public void UpdateQuantity(Product product, int quantity)
{
product.Quantity = quantity;
}
public bool IsProductAvailable(Product product)
{
return products.Contains(product);
}
public void DisplayInventory()
{
foreach (var product in products)
{
Console.WriteLine($"Product: {product.Name}, Quantity: {product.Quantity}");
}
}
public bool ProcessOrder(Order order)
{
foreach (var item in order.Items)
{
if (!products.Contains(item.Product)|| item.QuantityOrdered > item.Product.Quantity)
{
Console.WriteLine($"Insufficient stock for {item.Product.Name}");
return false;
}
}
foreach (var item in order.Items)
{
var product = products.Find(p => p.Id == item.Product.Id);
product.Quantity -= item.QuantityOrdered;
}
return true;
}
}
class Program
{
static void Main(string[] args)
{
Inventory inventory = new Inventory();
Book book = new Book { Id =1, Name = "Book", Price =10.99m, Quantity =50, Author = "Author" };
Electronics laptop = new Electronics { Id =2, Name = "Laptop", Price =99.99m, Quantity =20, Brand = "Brand" };
Magazines magazine = new Magazines { Id =3, Name = "Gaming Career", Price =12.99m, Quantity =40};
inventory.AddProduct(book);
inventory.AddProduct(laptop);
inventory.AddProduct(magazine);
Console.WriteLine("Current Inventory:");
inventory.DisplayInventory();
Order order = new Order { OrderId =1, Customer = new Customer { Id =1, Name = "John Doe" }};
order.Items.Add(new OrderItem { Product = book, QuantityOrdered =31});
order.Items.Add(new OrderItem { Product = laptop, QuantityOrdered =1});
Console.ReadLine();
}
} Can you please help me with this error, as it states that CS0051
Inconsistent accessibility: parameter type 'type' is less accessible than method 'method'. Please fix this error and let me know how it happened/how to fix it. Thank you. Code is in C#.
using System; using System.Collections.Generic;

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