Answer:
b upper middle class
Explanation:
because of term high income
In both species repeated pairing of a CS and US eventually produces a CR in response to the CS alone. In the sea-slug this is a very direct process, in the species we have been discussing in these lectures - rats, dogs, humans and so on - I hope you have seen that it is far from being so simple.
it would be false because they would be to absorbed to take to long to make a choice
False, quantitative data uses numbers