The statement 'A module can always refer to all variables declared in its parent module' is:

The statement 'A module can always refer to all variables declared in its parent module' is:

• A. True
• B. It depends
• C. Not provable
• D. False

Answer: (D)

Modules have isolated variable scopes. A module only sees variables it defines itself and values passed to it by its caller. It cannot automatically access every variable declared in its parent. If you want the child module to use a value from the parent, you must declare a corresponding input variable in the child module and pass the value when you call the module, for example: module "foo" { source = "./foo" region = var.region }. Inside the child, you then reference the input as var.region. This explicit passing of values is how data flows from parent to child, keeping modules decoupled and reusable. Therefore, the statement is false.

Modules have isolated variable scopes. A module only sees variables it defines itself and values passed to it by its caller. It cannot automatically access every variable declared in its parent. If you want the child module to use a value from the parent, you must declare a corresponding input variable in the child module and pass the value when you call the module, for example: module "foo" { source = "./foo" region = var.region }. Inside the child, you then reference the input as var.region. This explicit passing of values is how data flows from parent to child, keeping modules decoupled and reusable. Therefore, the statement is false.