Which of the following is true about the editable grids in clarify CRM

Skill/Topic: Advanced
A) Uses textbox, combo box and check box controls in the individual columns of the grid
B) Allow the user to update the database without having to open and Overview/Edit window.
C) Must mark which items should be updated or else all the data will be written back to the database
D) Grid which allows to insert the values in the database.