transkript: 154Whıch o| the following Is the main characteristic of sell—access Centers (sımsıv A) Learners aıways have lo vısıt SACs on a reguwar basıs B) Learners can onîy engage wım lhe pnnled materıals ın SACs. cı Learners are respansıbwe for orgamzıng me malerıals ın SACs D) Learners are supposed lo (manaa (he SACs E) Learners can work m SACs mdependemly and mdmduauy.