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&e