with rEgArD to thE Evolution oF lAnguAgE, whiCh oF thE Following stAtEmEnts is truE
A．thE origin oF lAnguAgE CAn BE trACED BACk to thE EArly mAn's imitAtion oF noisEs mADE By AnimAls.
B．mEAninglEss CriEs prECEDED thE origin oF lAnguAgE.
C．in thE proCEss oF Evolution, lAnguAgE is mAinly non-inFormAtivE.
D．originAlly, lAnguAgE is thE inDistinguishABlE Forms oF CriEs.