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

Which of the following classes is one valid superclass of 'endothelial cell chemotaxis to vascular endothelial growth factor'?

A. (+)-abscisic acid D-glucopyranosyl ester transmembrane transporter activity
B. (+)-camphor biosynthetic process
C. cell chemotaxis to vascular endothelial growth factor
D. (-)-menthol monooxygenase activity

Answer: cell chemotaxis to vascular endothelial growth factor