1. What is the correct way to describe the demand schedule?
(A) \( Q = 20 + 10P \)
(B) \( \mathrm{P} = -2 + 1 / 10\mathrm{Q} \)
(C) \( Q = 20 - 10P \)
(D) \( \mathrm{P} = 10 - 1 / 20\mathrm{Q} \)

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