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Ana and Shen need to decide which one of them will need to take time off work to complete the rather urgent task of shearing their llamas. Ana is pretty good with a pair of shears; she can shear the llamas in one hour. Shen is somewhat slow; it takes him six hours to shear the llamas. Ana earns $120 per hour as a business consultant, while Shen earns $15 per hour as a lifeguard.
Keeping in mind that either Ana or Shen must take time off work to shear the llamas, who has the lowest opportunity cost of completing the task?
A. Ana
B. Shen
C. Ana and Shen face identical opportunity costs