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

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

A. monocarboxylic acid anion(?x)
B. amino-acid anion(?x)
C. dicarboxylic acid anion(?x)
D. carboxylic acid dianion(?x)

Answer: dicarboxylic acid anion(?x)