You Are More Likely to Hire a Plumber to Repair

You are more likely to hire a plumber to repair a leaky drainpipe:

A) as the tax rate on your earned income rises.
B) if you already own the specialized tools required to complete the plumbing repair work.
C) following an increase in the opportunity cost of your time.
D) the more knowledge and experience in plumbing repair work you possess.
E) as the transaction cost of entering into a plumbing contract increases due to government regulations.