thE numBEr oF DAylight hours A AFFECts thE pErFormAnCE oF workErs in rEstAurAnts. B inFluEnCEs AnimAl FEEDing hABits. C mAkEs AnimAls likE hAmstErs morE ACtivE. D prEpArEs humAns For hAving grEAtEr lEisurE timE.