Determine whether and how each of the following factors would shift the demand curve for chiropractic visits:

a.An increase in the out-of-pocket price of chiropractic visits

b.An increase in back problems

c.A reduction in the out-of-pocket price for chiropractic visits

d.An aging of the population

e.An increase in the out-of-pocket price of back surgery (a substitute for chiropractic services)

f. A reduction in the price of radiographs (a complement of chiropractic services)

g.An advertising campaign that makes people more aware of the benefits of chiropractic care