It is very difficult to find goods with perfectly elastic or perfectly inelastic demand. We can, however,

Question:

It is very difficult to find goods with perfectly elastic or perfectly inelastic demand. We can, however, find goods that lie near these extremes. Characterize demands for the following goods as being near perfectly elastic or near perfectly inelastic?
a. Corn grown and harvested by a small farmer in Iowa
b. Heroin for a drug addict
c. Water for a desert hiker
d. One of several optional textbooks in a pass-fail course