Which of the following best describes proper documentation during de-icing?

Proper documentation during de-icing is crucial for ensuring safety and compliance with regulations. Documenting the time and conditions during de-icing provides a comprehensive record of the procedures followed and the environmental factors at play. This includes noting the atmospheric temperature, weather conditions, and the exact time that de-icing commenced and ended.

Recording this information helps in assessing the effectiveness of the de-icing process, ensures that all required protocols are followed, and allows for appropriate follow-up in case of any incidents. It also supports the verification of compliance with industry standards and can be critical for investigations of any issues that might arise later regarding an aircraft's airworthiness.

Simply recording the amount of fluid used, temperatures, or creating logs without considering the broader context of the de-icing conditions would not provide the complete picture necessary for adequate safety checks and regulatory compliance.