Complete this quote from Don Quixote: "...of these days, for the most part, it is the damask, brocade, and rich stuffs they wear, that rustle as they go, not the chain mail of their armor; no knight now-a-days sleeps in the open field exposed to the inclemency of heaven, and in full ________ from head to foot..."
a) armor
b) regalia
c) attire
d) panoply