Final answer:
The default arrangement order for contacts on a contacts page is typically alphabetical by last name, but this can be edited to sort by first name, email, or phone number.
Step-by-step explanation:
On the contacts page, the command group displays the view options. The default arrangement order is alphabetical by last name. The dialog box allows you to edit the order in which your contacts are displayed, providing various options such as by first name, last name, email or phone number. However, most contact management systems, email clients, and even mobile devices typically set the default view to sort contacts by the last name to make it easier to search and organize contacts in a more traditional and widely accepted format.