The XYZ company has a custom portlet that provides access to data from the company's mainframe. Twice a day, the mainframe performs a batch process to update the data. During the batch process, the portlet cannot access the data. Which one of the following options allows Sara to hide the portlet during the batch processing times?
A. Use the Policy editor to create a portlet availability policy, then use the Page Layout editor to assign the policy to the portlet.
B. Use the Policy editor to create a portlet availability policy and to assign the policy to the portlet.
C. Use the Personalization editor to create a portlet visibility rule, then use the Page Layout editor to assign the rule to the portlet.
D. Use the Personalization editor to create a portlet visibility rule and to assign the rule to the portlet.