This image shows the Basic information portion of the Create compute instance page.
There is text "Create an instance to deploy and run applications, or save as a reusable Terraform stack for creating an instance with Resource Manager."

There is a Name field showing sample text.

There is a Create in compartment drop-down list showing an example.

Under Placement there is text "The availability domain helps determine which shapes are available." 
There are boxes for AD 1, AD 2 (selected) and AD 3.