review the stanza

the wind was a torrent of darkness among the gusty trees the moon was a ghostly galleon tossed upon cloudy seas the road was a ribbon of moonlight over the purple moor
and the highwayman came riding-riding-riding- the highwayman came riding up to the old inn-door

which best identifies the rhyme scheme of this stanza?

A. a a b b b a

B. c c b a a b

C. a a b c c b

D. a a b a a b