Peter goes from bright sunlight into a dimly lit theater. at first, he can see little or nothing as he looks for a seat. over a ten-minute period he is gradually able to see things directly in front of him more clearly. his ability to see things off to the side steadily improves for another twenty minutes. this process is called

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disorders of the brain include both behavior disorders and other psychiatric illnesses. the primary difference between a behavior disorder and another type of psychiatric disorder is the presence of choice. psychiatric conditions are considered to be involuntary while in behavior disorders, choices are essential.

it would be d). more resources must be obtained to attain that combination of goods and services