Which of the following facts would be explicitly recorded in an information model?

An information model serves as a structured representation of the information that an organization uses and processes. It lays out the relationships and constraints involving various data items, ensuring clarity on how different elements interact.

In this context, the fact that a sales order may be associated with many deliveries is a key reflection of the relationships within the data used in the business processes. This particular fact demonstrates a cardinality relationship which indicates that one sales order can correlate with multiple deliveries, underscoring the nature of order fulfillment in logistics and sales.

Understanding this relationship is crucial for database design and for stakeholders who need to make informed decisions based on the flow of information. It helps to define how sales orders are handled operationally, thus, it must be explicitly recorded in the information model to ensure that all relevant interactions and dependencies are captured for effective data management.

The other facts, while relevant to business operations, do not present relationships between entities in the manner that option C does. They reflect actions or events but lack the structural significance necessary for inclusion in an information model.