Which of the following choices represents a violation of derivative classification rules?

Creating new documents without referring to source materials represents a violation of derivative classification rules because it disregards the requirement to base derivative classification on existing classified information. Derivative classification involves taking previously classified information and using it to create new documents or materials while ensuring that the classification levels and markings are correctly applied based on the source material. When one creates new documents without referencing the original source materials, there is a risk of misclassifying information or failing to apply the correct classification guidance, which can lead to improper handling of sensitive data.

In contrast, securely storing classified information, properly marking classified documents, and transmitting classified data through secure channels are all best practices that ensure compliance with classification standards and protect classified information. These actions are crucial for maintaining the integrity and confidentiality of classified materials.