Final answer:
The question involves the departure sequence of an airline, where a passenger is required to show a specific document or object to the captain or crew after its removal, likely for safety or procedural verification.
Step-by-step explanation:
The subject of the question pertains to the departure sequence of an airline passenger. The blank space likely refers to a specific document or object that needs to be shown to the flight crew or captain after its removal. Given the context related to airlines, the document could possibly be a boarding pass or safety card. The exact item is not specified, but protocol and security procedures often require passengers to show documents to the captain or crew at various points during the flight process.
This situation is possibly described in the context of a safety or procedural lesson to help students understand the various steps and responsibilities involved in air travel, particularly the role of the crew and the importance of following proper procedures for the safety and security of everyone on board.