Task: Class Relation Understanding (ontology: Sciences/Biology)

Which of the following classes is one valid superclass of 'negative regulation of dendritic cell antigen processing and presentation'?

A. B cell cytokine production
B. CCL3-positive alveolar macrophage
C. regulation of dendritic cell antigen processing and presentation
D. CCAAT/enhancer-binding protein epsilon

Answer: regulation of dendritic cell antigen processing and presentation