6. Suppose you are the owner of Doggie 'D', a dog grooming operation. Presently, 30 dogs are groomed

daily, for which the only inputs required are scissors and groomers. If, upon doubling the number of

scissors and groomers, you can groom 56 dogs daily, your dog grooming production function exhibits:

a. decreasing returns to scale

b. increasing returns to scale

c. constant returns to scale

d. either increasing or decreasing returns to scale

e. increasing average productivity