Task: SWRL-based Rule Reasoning (ontology: Earth_Environment/EnvironmentOntology)

Suppose an individual ?x satisfies: biomacromolecule(?x). Which conclusion is one valid inferred conclusion?

A. macromolecule(?x)
B. heteroatomic molecular entity(?x)
C. nanostructure(?x)
D. polyatomic ion(?x)

Answer: macromolecule(?x)