What does the term "national anthem" refer to?

The term "national anthem" refers specifically to a song that symbolizes a nation. National anthems are musical compositions that express the values, history, and culture of a country. They are often played during patriotic events, public ceremonies, and national holidays, representing national pride and unity among the citizens. Additionally, these anthems typically encapsulate the struggles and aspirations of a nation and help foster a sense of identity among its people.

In contrast, the other options do not accurately capture the essence of what a national anthem represents. A public holiday refers to a specific day that is recognized and celebrated by a nation, which may involve the playing of the national anthem but is not the anthem itself. A historical document is a written record that provides information about past events, while a type of flag represents the nation's identity but is not a musical symbol. Thus, the definition of a national anthem is distinctly tied to its role as a song that embodies the spirit and unity of a nation.