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

The property 'has wavelength' applies to instances of 'wave', and 'sound wave' is a subclass of 'wave'. Which class can appear as the value of 'has wavelength' for instances of 'sound wave'?

A. wavelength
B. gharbi
C. solar forcing
D. turbidity current

Answer: wavelength