A.Both RTA and RTB will do LSA7/5 translation,since they are both NSSA ABRs
	B.RTA will do LSA7/5 translation,since it has the lower router ID
	C.RTB will do LSA7/5 translation,since it has the higher router ID
	D.The redistributing router will do LSA7/5 translation,since it is within the NSSA
 
                            