Answer: Option(b) is correct
Explanation:
Positive economics is the field where economy is studied and analysed without predicting about its judgement in terms of goodness or badness. This theory defines about cause and effect that causes economic processes and behavior.
Other options are incorrect because operation of federal government and price level is not set by positive economics also does not describe value decisions and expectation about economy should operate. Thus, the correct option is option(b) .
This question is missing the options. I've found the complete question online. It is the following:
As part of a study in auditory perception, a group of students was made to listen to a low-volume music track. When they first put on their headphones, they almost couldn’t hear anything. But as they became more attentive, the sound gradually became clearer. This is an example of _________.
a. retinal disparity
b. pitch increase
c. sensitization
d. subliminal stimulation
Answer:
This is an example of C. sensitization.
Explanation:
According to the given scenario, the sound was not altered. Its volume, its pitch - everything remained the same. There was, however, an alteration in people's perception of the sound, and that is due to a process known as sensitization. Sensitization happens when a certain stimulus becomes more effective because of repetition or continuation. That is, because people kept on listening to the sound, even though it was low, they were able to hear it after a while.
Signal at least 100 ft before making a turn.
