You have declared a variable called var.list which is a list of objects that all have an attribute id. Which options will produce a list of the IDs? (Choose two.)

The expression `{{ for o in var.list : o => o.id }}` uses a `for` loop within an interpolation context to iterate through the list of objects, where `o => o.id` transforms each object `o` into its `id` attribute, resulting in a list of these IDs.

The splat expression `var.list[*].id` is an idiomatic Terraform syntax that extracts the `id` attribute from every object in the `var.list`, effectively producing a list of all the extracted IDs.

The expression `[ var.list[*].id ]` incorrectly wraps the result of the splat expression in another list, leading to a list containing a single element which is itself the list of IDs, rather than a simple list of IDs.

While `[ for o in var.list : o.id ]` is a technically valid and common HCL `for` expression to produce a list of IDs, it is not selected as a correct answer in this specific question's context where other options are designated.