Strophic is a song form in which every verse ( strophe) of the text is sung to the same musical tune.
In a song with modified strophic form, some verses are sung to the same melody, while others aren't. Correct answer: D
the repeated sections of music have varied or elaborated forms from the basic theme. Example of modified strophic is Schubert's "Des Baches Wiegenlied,".