mary would like to display a collapsed section on her video catalog form, she has created a section buy when she display the form in the client the section always opens expanded. which one of the following should mary do to collapse the section?（）

• A、 nothing. Sections always open expanded 
• B、 modify the section default properties to collapsed 
• C、 modify the form propenties to display all sections collapsed 
• D、 modify the section opened for reading property to auto-collapse