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

Which of the following classes is one valid superclass of 'plasmodesma organization'?

A. 2,4,6-trinitrotoluene catabolic process
B. cell-cell junction organization
C. 3'-5'-RNA exonuclease activity
D. 11-beta-hydroxysteroid dehydrogenase [NAD(P)+] activity

Answer: cell-cell junction organization