The correct point that explains how the end of the Cold War contributed to the Clinton-era economic boom is:
• Costly military resources did not need to be maintained at the same level.
With the end of the Cold War, the United States was able to reduce its military spending and reallocate those resources towards domestic programs and economic growth initiatives, which contributed to the economic boom during the 1990s. The decrease in military expenditure allowed for increased investment in areas like technology and infrastructure, which were key drivers of the economic expansion during that period.