1. List all the different product categories and sub categories in alphabetical order, list only the product category and product subcategory. Sort by the product subcategory. 2. How many ORDERS had a CRITICAL order_priority? [Hint: you will use the function COUNT(*) ] 3. Display the order date and the ship date for all orders that were made April 1 through April 15. List the order date, ship date, order priority, and ship mode. Order the results by order_date. Do you notice anything unusual about the data? (Hint: You will need to join the orders and shipping together and use a join statement. You will need to limit the result set by the date field order_date