Answer:
The answer is option C.
Explanation: Homeland Security Agency was created as a domestic agency aimed at maintaining order during the crisis such as the chaos that followed the 9/11 attacks. President Bush established this department to protect the interior of America and the citizens from any kind of terror attack and also to prevent this terror attacks. But now it is working as an organization also in immigration and other interior security issues.
Every day, the US Congress makes thousands of decisions.
In a direct Democracy, the citizenry would need to all be involved in each of these decisions. There are so many, that it would basically turn into a full time job for all citizens.
So, to allow for the majority of people to engage in trade or commerce, indirect democracy allows the election of representatives who act on behalf of the citizenry.
Expand outward within the US no matter what it is in the way. They thought it was fine to take land from the Native Americans.