You want to create a template to be used as a standard for all company reports, which are many different styles. How many different templates must you have if you plan to use multiple report styles?（）

单项选择题Atdesigntime,youcreateaqueryrecordgroupfortheLOVassociatedwiththeHOTELtextiteminaformmodulefortheTravelPlannerApplication.Whenistherecordgrouppopulated?（）

A.When the user navigates to the HOTEL item. 
B.When the form module successfully compiles. 
C.After Form Builder validates the SELECT statement and dismisses the New Record Group dialog box. 
D.When the user enters data in the HOTEL item, and the Validate from List property for the HOTEL item is set to YES. 

单项选择题Theusersrequestthat[F2],[F3],and[F4]beusedtocommit,rollback,andexit,respectively.Howdoyouaccomplishthis?（）

A.Add the appropriate PL/SQL code for each key. 
B.Map the logical keys to the physical keys, then add the appropriate PL/SQL code for each key.
C.Create an object library to define the key triggers, then reference the object library in the form. 
D.This cannot be accomplished because other function keys provide this functionality by default.