Please help me with (c) and (d) in the attached question (simplex algorithm in 3D):

E. CentidEr the three-dimeneienel LP eeiut'len epeee ehewn helm: with its feasible extreme pehlte identied by A? B. \".1 I [REED is a square of Billie equal to 1}. 111'- \"D a}1ndieate 1trhetl'ter at not the feewing pairs ef Ettreme paints are [Hi- jeeent: 5} 31,3; ii} 3,1}; iii} EH; hr) ELI 1:] From the Etendpeint ef the Bimpie: met'reJi euppeee that the teiutien eterteetendthet tlteeptitemueeeureet-1edieetewhetherernetthe simplex itereiiene Elem A to H can he ilientied by the feewhlg sequences ef extremt palate and state the t-'Bn- iJAttGrH ii}A:CrFrJrH iii}.il-r-I-C'-rf H iv}.4-4FHH at#34134?! vi}ArD+AtB+GrH u}AhUtFtDtABrG'tH e]: 111 the gure above. all the eenetraihte emaciated 1:tl'ith the eelutien space are at the type 5. Let 51, g, 33. end at. repreltent the elect meblm nemeietedwith the eeeetreinte rettrmented by Line plan-m CEIJF,.HEIHG, DFJHG, and HIJ, reepeetiteiy. Identir the heeie end nenheaie veriehiee eeee-eieted With each extreme feeeibie paint. L1]! Identify the mteng end Elm-ring ueriehlee when the eeluen mmm hetereenthefeewingpeireefextremepeiete: i}A}B;}EAI; iii} F t J; it?) D t G