CAP applies here. If you ask your cache for a value, it could choose to reply now, with the information that it has - favouring A. Or it could wait and hope f

CAP applies here. If you ask your cache for a value, it could choose to reply now, with the information that it has - favouring A. Or it could wait and hope for more accurate information to return to you later, favouring C. 'Cache' seems to imply that it's built for availability purposes.