Holland’s 16th-century hymn “Het Wilhelmus” is widely considered the world’s oldest national anthem, followed by the U.K.’s “God Save the King/Queen”—also a hymn, popularized in the 1740s. As nationalism spread throughout Europe in the 18th and 19th centuries, so did anthems. Many countries, such as the independent states that are today part of Germany, took “God Save the King/Queen” as a model and adopted hymns (songs of prayer typically addressed to a deity or VIP). Others, notably Spain and France, chose marches (songs with a strong, regular rhythm often performed by military bands)—which expressed a martial rather than monarchic spirit. With imperialism, Europeans spread their musical taste. Even when former colonies gained independence, they often imitated the traditions of their former rulers. The result is that most anthems are either hymns or marches, played on European instruments.
(2) ( ) What is the second paragraph mainly about?
(A) The function of national anthems.
(B) The world’s oldest national anthem.
(C) The origin and spread of national anthems.
(D) Reasons why many countries have national anthems.
I am thinking about C the answer --it talks about the "origin," but "spread of anthem"--I am thinking about it. D---Because of nationalism, anthems start to be in many places---the answer the teacher showed us is D