.In each of the following, compare the price elasticity of demand for each pair of goods. Explain why the demand for one of the goods is more elastic than the other:

a. ) A flat screen TVversus an ipod.

b. ) Electricity just after an increase in its price versus electricity two years after the price increase.

c. ) Acetominophen versus Tylenol brand acetaminophen

d. ) Ipads when they first were produced versus Ipads two years from now.