Calvin's professor can conclude that Calvin has been an observational kid.
Explanation:
The observation Calvin makes is a rather arbitrary one but one that can invite broader concern nonetheless.
Some kids start bobbing their heads and raising them before they can ever turn while the other develop these skills in the opposite order.
It would remain to be seen if Calvin would think something can be inferred from this otherwise rather standalone observation of things or not as there may be a study on how far this can be taken in child psychology.
At any rate, he is an observational student and the professor can put that to use.
1.- Sales of used goods are not counted. It has sense because if they were counted we would have double the counting.
2.- Goods and services that are sold in the black market or illegal goods and services because they are extremely difficult to count.
3. Intermediate goods that are used to produce other final goods because the counting of intermediate goods counting will lead to double counting .
Answer:
A.
Explanation:
I think it is A because the other reasons are just nonsense. Plus, A makes more sense because they wouldn't go down there to explore the Grand Canyon how they do today. I mean, maybe? But no. It's A. :)
