Lisebelisoa tsa katoloso ea IV li thusa ho fokotsa kotsi ea tšoaetso, nako ea ho itokisa, litšenyehelo le ho rarahana ka litlhophiso tse kopaneng kapa tse feto-fetohang. Khetho ea rona ea li-extension tsa IV e na le mefuta e fapaneng ea boholo le likhokahano.
