Case Study $2$: Online Retail Store $(45$ marks$)$ Background: An online retail store wants to develop a new software system to handle its operations. This system will manage products, orders, customers, and inventory. The system must support different types of products, including electronics, clothing, and groceries. Requirements: $1.$ The system should have different product categories, each with specific attributes. For example, electronics have a warranty period, clothing has sizes and materials, and groceries have an expiration date. $2.$ Customers can place orders for multiple products. Each order should track the order date, delivery date, and status. $3.$ The system should handle inventory management, including updating stock levels when orders are placed and returned. $4.$ Implement a simplified version of the system focusing on class structures, inheritance, and method overloading.