Do Not Go Gentle into That Good Night can be characterized as a villanelle for all the following reasons besides? \
A. the rhyme scheme is open.
B. the poem contains 19 lines.
C. the lines establish a musical Rythm
D. the poem ends with a rhyming couplet.
C. the lines establish a musical rhythm
While "Do Not Go Gentle into That Good Night" does make use of regular rhythm and meter, this alone does not determine its classification as a villanelle. The other characteristics mentioned, such as the rhyme scheme and number of lines, are more significant in identifying it as a villanelle.