According to the author of the passage, which of the following is true about the tango? A. By the time Lamarque starred in films as a tango singer, the tango was socially acceptable. B. Outside Argentina the tango's reputation was quite different from what prevailed in Argentina. C. The tango began to gain popularity in Argentina once it became an element in melodramatic films. D. By the 1930s, no one in Argentina associated the tango with criminality and vice. E. Until the 1930s, the tango was primarily thought of as a dance form rather than as a genre of song.