Related to the Economics in Practice on P

question 15

Multiple Choice

Related to the Economics in Practice on p.55: The Amazon Kindle and the electronic textbooks available for the Kindle are complementary goods.Electronic textbooks and traditional,hard copy textbooks are substitute products.If the price of electronic textbooks for the Kindle decreases,

• A)demand for the Kindle increases,demand for electronic textbooks increases,and demand for traditional,hard copy textbooks decreases.
• B)the quantity of Kindles demanded increases,demand for electronic textbooks increases,and the quantity of traditional,hard copy textbooks demanded decreases.
• C)demand for the Kindle decreases,the quantity of electronic textbooks demanded increases,and demand for traditional,hard copy textbooks decreases.
• D)demand for the Kindle increases,the quantity of electronic textbooks demanded increases,and demand for traditional,hard copy textbooks decreases.

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Definitions:

Center of the Eye

Refers to the pupil, the circular, black-looking opening in the iris that regulates the amount of light that enters the eye.

Optic Nerve

A cranial nerve that transmits visual information from the retina to the brain.

Ganglion Cells

Type of neurons located in the retina of the eye that receive visual information from photoreceptors and transmit it to the brain via the optic nerve.

Blind Spot

The point in the visual field that lacks light-detecting photoreceptor cells, where the optic nerve passes through the optic disk of the retina.