How can the Coast Guard determine that a crew member is "able to understand any order spoken by the officers"?

Correct Answer: Option C — Require a demonstration by the officer and the crew member

To verify language proficiency under 46 CFR 15.730, the Coast Guard utilizes practical demonstrations. By observing an officer issue a command and the crew member executing the corresponding action, the inspector can objectively confirm that the crew member understands the orders, ensuring safety during critical shipboard operations.