Task: Property Constraint Reasoning (ontology: Legal/Public_Procurement_Ontology)

The property 'Complementary contract' applies to instances of 'Public contract', and 'Conclusion contract' is a subclass of 'Public contract'. Which class can appear as the value of 'Complementary contract' for instances of 'Conclusion contract'?

A. Procedure resignation
B. Accepted tender
C. Electronic auction phase
D. Public contract

Answer: Public contract