When adding users to the Support group, what method allows selecting multiple users at once?

The correct method for selecting multiple users at once when adding them to the Support group is by using the Ctrl or Shift keys. This approach is commonly used in many graphical user interfaces (GUIs) and allows users to select multiple items efficiently.

When you hold down the Ctrl key while clicking, you can select individual users that are not adjacent to each other. On the other hand, holding the Shift key allows you to select a contiguous range of users by clicking the first and last user in the desired selection. This method is particularly useful for efficiently managing groups, as it minimizes the time and effort needed to select each user individually.

The other methods do not facilitate the selection of multiple users effectively. Right-clicking typically allows for actions on a single item at a time rather than multiple selections. Automatically adding all users in the Organizational Unit (OU) does not provide fine control over which users are included, often resulting in unintended additions. Selecting users from a dropdown menu usually limits options to one selection at a time, making it impractical for bulk operations.