The Houyhnhnms depicted by Jonathan Swift in Gulliver.s Travels are ___.    (本题3.5分)
A、 horses that are endowed with reason 
B、 pigmies that are endowed with admirable qualities 
C、 giants that are superior in wisdom 
D、 hairy,wild, low and despicable creatures, who resemble human beings not only in appearance but also in some other ways.