Therefore, on every morrow, are we wreathing
Ans (a) = We are wreathing a flowery band .. all those people who have unpleasant days , memories and hard times.. they want all beautiful things to surround them which makes them feel happy and revived ! with fresh thoughts and spirits !
Ans (b) = Acc to stanza given, The poet is not happy for the noble nature of the human beings ... the attitude of humans when they are at hardship.
Ans (c) = The evil ways that one take when they are unhappy, suffering from dark days ( unpleasant days ) and bad memories, unhealthy problems and all such. tells us Oer Darkened ways !