You need to complete a postal code input form element (post_code).

First blank: type

Second blank: pattern

Third blank: required

The first blank must be type because the question requires the input data type to be text, producing type= " text " . The second blank must be pattern because [0-9]{5} is a regular expression that permits exactly five numeric digits. The third blank must be required because the postal code field must be mandatory before the form can be submitted.