in thE sEntEnCE "... But Also thAt thEy ArE ArrAngED in A hiErArChy... "(pAr
A．2) "thEy” rEFErs to ______.A. lowEr-orDEr nEEDsB. highEr-orDEr nEEDsC. BAsiC DrivEsD. mAny nEEDs