Task: Property Constraint Reasoning (ontology: Sciences/Biology)

The property 'channel for' applies to instances of 'anatomical conduit', and 'foramen secundum' is a subclass of 'anatomical conduit'. Which class can appear as the value of 'channel for' for instances of 'foramen secundum'?

A. anatomical structure morphogenesis
B. immune system process
C. glycolipid binding
D. organism substance

Answer: organism substance