Awake united states!

how proudly sailed the warship maine,
a nation's pride, without a stain!
a wreck she lies, her sailors slain.
by treacherous butchers, paid by spain!
refrain:
eagle soar on high,
and sound the battle cry
wave the starry flag!
in mire it shall not drag!

awake! thy stars and stripes unfurl,
and shot and shell and vengeance hurl!
though clouds gather, they will go,
and sunlight follow after woe.

each of these words and phrases from the song suggest the songwriter's bias except:
a. slain.
b. warship maine.
c. nation's pride.
d. treacherous butchers.