Final answer:
The correct statement about the network database model is that each node may have many parents. Charles Bachman developed this model, not E.F. Codd who created the relational model.
Step-by-step explanation:
The statement that is true regarding the network database model is: Each node may have many parents. The network database model is known for its flexibility in representing complex relationships among data where a single child or record can have multiple parent records.
This is different from the hierarchical model where each child can only have one parent. The first statement is incorrect because it was Charles Bachman who developed the network database model, not E.F. Codd. E.F. Codd is actually associated with the relational database model.
The second statement is more related to object-oriented databases where data and methods (functions or procedures) are indeed encapsulated together. The fourth statement is somewhat misleading; while records are connected, they are often connected by 'sets'.