ACCorDing to thE lAst pArAgrAph, why is DiFFErEntiAtED mArkEting morE suitABlE For proDuCts whiCh ArE in thE mAturE stAgE oF thEir proDuCt liFE CyClE
A．BECAusE oF A Firm's limitED rEsourCEs.
B．BECAusE oF thE homogEnEous proDuCt.
C．BECAusE oF CompEtition.
D．BECAusE oF BEttEr sErviC