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

Which of the following classes is one valid superclass of 'interleukin-5 receptor complex'?

A. plasma membrane signaling receptor complex
B. 2 iron, 2 sulfur cluster binding
C. 2,4-dichlorobenzoate catabolic process
D. 2-dehydro-3-deoxy-D-gluconic acid catabolic process

Answer: plasma membrane signaling receptor complex