Which scenario could be a threat to U.S. national security? A large earthquake has hit Paris. France. and multiple buildings in the city have been destroyed. A leader from a terrorist organization has sent members to a nearby country like Cuba. Trade between China and Germany has decreased due to failed negotiations between them. Japan has requested the presence of the

## Step 1<br />The problem is asking us to identify which scenario could pose a threat to U.S. national security. National security refers to the safety and protection of a nation's citizens, economy, and institutions from threats such as terrorism, espionage, and other forms of harm.<br /><br />## Step 2<br />We need to evaluate each option based on its potential to threaten U.S. national security.<br /><br />## Step 3<br />Option A: A large earthquake hitting Paris, France, and causing destruction to multiple buildings in the city. This event, while tragic, does not directly threaten U.S. national security.<br /><br />## Step 4<br />Option B: A leader from a terrorist organization sending members to a nearby country like Cuba. This scenario could potentially threaten U.S. national security, as it involves the movement of members of a terrorist organization to a country close to the U.S.<br /><br />## Step 5<br />Option C: Trade between China and Germany decreasing due to failed negotiations. This event, while it may have economic implications, does not directly threaten U.S. national security.<br /><br />## Step 6<br />Option D: Japan requesting the presence of the U.S. military. This scenario does not inherently threaten U.S. national security, as it involves the U.S. military being requested by another country.