Task: Property Constraint Reasoning (ontology: Earth_Environment/SWEET)

The property 'has vector' applies to instances of 'vector quantity', and 'angular velocity' is a subclass of 'vector quantity'. Which class can appear as the value of 'has vector' for instances of 'angular velocity'?

A. heat capacity
B. vector
C. convective cloud top
D. north latitude line

Answer: vector