Task: Property Constraint Reasoning (ontology: Earth_Environment/EnvironmentOntology)

The property 'biomechanically related to' applies to instances of 'anatomical structure', and 'ectoderm-derived structure' is a subclass of 'anatomical structure'. Which class can appear as the value of 'biomechanically related to' for instances of 'ectoderm-derived structure'?

A. motor
B. bottle
C. physical quality
D. anatomical structure

Answer: anatomical structure