Which statement is true about how to create the calculated item?

You want to create a calculated item in the Control block of the Human Resourced form. This item will contain the total of employee salaries for employees in a particular department. Which statement is true about how to create the calculated item?

A.
You can create it by first creating a text item and then changing the item type.

B.
You can create it in the Layout Editor using a special tool that creates a calculated item.

C.
You can create it by first creating a display item and then setting appropriate properties in its Calculation property group.

D.
You can create it in the Layout Editor by selecting the Salary item of the Employees block, selecting the Control block from the block list, clicking the Text Item tool, and drawing a text item on the canvas to automatically calculate a sum of the selected Salary item.