Passage Summary: The government wants to fix the banks by selling them, but if the old owners get them back, the fix won't work; unfortunately, the old owners are the ones likely to buy them.

Conclusion: The government agency is unlikely to succeed in its goal of strengthening the banking system.

Reasoning: Strengthening the system is impossible if the former owners buy the banks back, and there is a high likelihood that these former owners will be the ones to do so.

Analysis: This 'Complete the Argument' task requires us to provide a premise that makes the conclusion follow logically. The argument sets up a conditional: if former owners buy the banks, the system isn't strengthened. To conclude that the agency will likely fail, we need to bridge the gap by showing that the former owners are indeed likely to buy the banks. Look for an answer that suggests the former owners have the capital, interest, or lack of competition necessary to regain control.