What do we show loyalty to when we say the Pledge of Allegiance?

When reciting the Pledge of Allegiance, individuals express their loyalty and commitment to the United States as a whole. This act symbolizes dedication not only to the nation itself but also to the values and ideals it represents, such as freedom, justice, and equality. The phrase "to the flag" mentions a specific symbol of the nation, which embodies the principles of the United States and serves as a representation of the country. However, it is important to recognize that the underlying sentiment of the pledge is to the nation—the United States—rather than merely its government, constitution, or flag.

The other options, while significant in their own respects, do not encapsulate the full breadth of what loyalty to the nation signifies in the context of the Pledge of Allegiance. The Constitution and the government are essential components of national governance and law, but the pledge specifically invokes allegiance to the country as a whole, making it a broader and more encompassing expression of loyalty.