EnsurepassQUESTION 151 You are a developer for a Microsoft SQL Server 2008 R2 database instance used to support a customer service application.   You create tables named complaint, customer, and product as follows:     You need to write a query to sum the monthly sales of each product.   Which SQL query should you use?     A. Option A B. Option B C. Option C D. Option D E. Option E F. Option F G. Option G H. Option H I. Option I J. Read more [...]