What are these lines from near the end of "Runagate Runagate" mostly about? Oh that train, ghost story train
through swamp and savanna movering movering,
over trestles of dew, through caves of the wish,
Midnight Special on a saber track movering movering,
first stop Mercy and the last Hallelujah
A. the threats and dangers faced by most escaping slaves
B
a railroad line in the South that was built with slave labor
C. the difficulties and the hopes of escaping slaves as they traveled
D
a supernatural train that would take deceased slaves to the afterlife