OA is A.
What I don't understand is... the passage says the product's prices can't be raised and the usage of prescription drugs did not expand. Although new medications were produced, how can the spending increase if the same number of prescription drugs were used?
What I don't understand is... the passage says the product's prices can't be raised and the usage of prescription drugs did not expand. Although new medications were produced, how can the spending increase if the same number of prescription drugs were used?
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