If management needed to determine which book category generated the most sales in April 2009, which tables and fields would they consult to derive this information?

Figure 1-5:

ORDERS Order# Customer# Orderdate Shipdate Shipstreet Shipcity Shipstate Shipzip Shipcost CUSTOMERS Customer# Lastname Firstname Email Address City State Zip Referred Region BOOKAUTHOR AUTHOR BOOKS AuthorID ISBN ISBN AuthorID Lname ORDERITEMS Title Pubdate PubID Fname Order# Item# Cost Retail ISBN Quantity Paideach Discount PUBLISHER Category PubID Name PROMOTION Contact Phone Gift Minretail Maxretail