zoezhuyan
I crossed off B because I think it is inappropriate, it will be better if we use itself, because the subject of the sentence is the same as the object.
Notice that it's not logical that the chalice was buried to "keep itself" from being stolen. After all, a chalice is not something we think of as doing something to keep things from happening to "itself."
So, actually, using "itself" there doesn't make sense. We need to use "it" instead.
Quote:
then I cannot disguise between A and C,
The (A) version conveys that the chalice chose to be "buried to keep from being stolen," as if the chalice had the intention of keeping from being stolen and therefore got itself buried. Since a chalice is not something we think of as having intention, that meaning doesn't make sense.
The (C) version conveys a similar meaning, that the chalice chose to be "buried to avoid being stolen," as if the chalice had the intention of avoiding being stolen and therefore got itself buried. Since a chalice is not something we think of as having intention, that meaning doesn't make sense either.
So, the best choice is (B).