D
There is a widespread belief that people can predict impending earthquakes from unusual animal behavior. Skeptics claim that this belief is based on selective coincidence: people whose dogs behaved oddly just before an earthquake will be especially likely to remember that fact. At any given time, the skeptics say, some of the world' s dogs will be behaving oddly. Clarification of which one of the following issues would be most important to an evaluation of the skeptics' position?
A: Are the sorts of behavior supposedly predictive of earthquakes as pronounced in dogs as they are in other animals?
B: Are there animals about whose behavior people know too little to be able to distinguish unusual from everyday behavior?
C: Which is larger, the number of skeptics or the number of people who believe that animal behavior can foreshadow earthquakes?
D: Is the animal behavior supposedly predictive of earthquakes specific to impending earthquakes or can it be any kind of unusual behavior?