Which of the following lines can be seen as a reference to the War?

A、Howmanyroadsmustamanwalkdownbeforeyoucallhimaman?
B、howmanytimesmustthecannonballsflybeforethey’reforeverbanned?
C、Howmanyyearscanamountainexistbeforeit’swashedtosea?
D、Howmanytimesmustamanlookupbeforehecanseethesky?