You use Visual Studio to design a SharePoint solution for a company that provides computer support services to customers around the world. The solution must list the customer service representatives that resolve the highest number of support requests. The solution also must allow filtering of customer service representatives by region. You need to configure the solution to meet the requirements. Which steps should you take? (Each correct answer presents part of the solution. Choose all that apply.)
A. Add a Recommended Items Web Part to the page.
B. Add and configure a Refinement Web Part to the page.
C. Add regions as property filters to the Search Results Web Part.
D. Configure the query for the Content Search Web Part.