thE Author usEs thE tErm "prEsymBoliC lAnguAgE" to mEAn proBABly ______.
A．lAnguAgE usED in ACCurAtE rEports
B．lAnguAgE thAt lACks An ElABorAtE grAmmAtiCAl struCturE
C．lAnguAgE thAt our AnCEstors usE prEhistoriCAlly
D．lAnguAgE thAt is oF littlE inFormAtivE vAluE