Task: SWRL-based Rule Reasoning (ontology: Business_Finance/Financial_Industry_Business_Ontology)

Suppose an individual ?x satisfies: native yield calculation method(?x). Which composite conclusion is inferred?

A. has default rate(?x, ?y) ∧ tradable debt instrument(?y)
B. is default method for(?x, ?y) ∧ tradable debt instrument(?y)
C. is default method for(?x, ?y) ∧ russian yield calculation method(?y)
D. is default method for(?x, ?y) ∧ native yield(?y)

Answer: is default method for(?x, ?y) ∧ tradable debt instrument(?y)