ACCorDing to thE pAssAgE, thE CAsE oF thE pEnAn ForAgErs' CultivAtion oF thE sAgo pAlm FAils to inDiCAtE thAt
A．A Co-EvolutionAry ArgumEnt is unnECEssAry to EstABlishing thAt rAin-ForEst ADAptAtion is thE EFFECt oF humAn intErvEntion
B．plAnt-spECiEs inimiCAl to CArBohyDrAtE-riCh spECiEs woulD ContinuE to thrivE without thE prACtiCEs oF ForAging pEoplEs
C．thE "thinning" EFFECt proDuCED By thE pEnAn's ForAging prACtiCE is rEsponsiBlE For thE sAgo pAlm's long-tErm survivAl
D．thE pEnAn hAvE justiFiCAtion For ABAnDoning thE ExploitAtion oF sAgo pAlms or rEloCAting to morE CArBohyDrAtE-riCh ArEAs
E．(E) rAin ForEsts mAy EvolvE As A rEsult oF thE quAntity AnD AvAilABility oF ExtAnt CArBohyDrAtE-riCh spECiEs