18. Given the earlier declaration od the class SNodo and the declarations SNode Previous Node Texp: Assume that the target of previous is an SNode contained in a ?*od list which of the following code segments removes (and deallocates) the node that folkows the target of Previous without breaking or corrupring the list? You may assame theat there is a node Sollowing the target of Previous, and that that noxde also has a successor 1) Temp. Previous Prevlous-NextTenp-Next: delete Tempa Previous-Temp-Next: delete Previoua 2) Teap - Previous-Next 5) Temp-Previous-Next Previous -Tenp-Next delete Terp Previous Temp-Next delete Previous->Next Teap-Previous-Next Previous->?ext Temp->Next delete Tempa 6) None of these For questions 19 theough 24, ansume that Bead, p and q have all been doclared as SNode and that the Sollowing list structure has been created (Use the structure below as your starting point for each question Head--+ 23 15 72 Deternine what the execution of the given code fragment would do to the given structure Choong yOUR DEWTS from shos 19. p-ext-q 20. -Next - p-iext; p-ext NULL 21, q->Mext p->Next? - TNextNexti 22 -oxtNOLL delete P 23. delete (p->ext) 24. -ext -Head delete P