As mentioned in the passage, there is no set design to initiate local exchange system as .........

    1. they tend to work well only in selected countries
    2. they are region specific
    3. they are too complicated to understand

  • Only A
  • Only B
  • Both A and C
  • Both A and B
  • Only C
As mentioned in the passage, there is no set design to initiate local exchange system as .........
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