The correct answer is: Only conclusion I follows.
The statement does not provide enough information to support conclusion II. It is possible that the ABC government enacted the OSA with the intention of preventing corruption, but that the act has had the unintended consequence of encouraging corruption. Alternatively, it is possible that the ABC government was not aware of the potential for the OSA to encourage corruption.
Conclusion I, however, is supported by the statement. If the OSA is a major source of corruption, then abolishing it would likely reduce corruption.
Here is a more detailed explanation of each option:
- Option A: Only conclusion I follows. This is the correct answer. As explained above, conclusion I is supported by the statement, while conclusion II is not.
- Option B: Only conclusion II follows. This is incorrect. Conclusion II is not supported by the statement.
- Option C: Either I or II follows. This is incorrect. Only conclusion I follows.
- Option D: Neither I nor II follows. This is incorrect. Conclusion I follows.
- Option E: Both I and II follow. This is incorrect. Only conclusion I follows.