Task: SWRL-based Rule Reasoning (ontology: Sciences/Biology)

Suppose an individual ?x satisfies: regulation of cyclin-dependent protein serine/threonine kinase activity(?x). Which conclusion is one valid inferred conclusion?

A. positive regulation of protein serine/threonine kinase activity(?x)
B. regulation of protein serine/threonine kinase activity(?x)
C. regulation of tau-protein kinase activity(?x)
D. positive regulation of protein kinase activity(?x)

Answer: regulation of protein serine/threonine kinase activity(?x)