28 The pedigree below shows the inheritance pattern of a genetic disease caused by homozygous recessive lethal alleles. If the disease caused the death of individual II–2, then _[blank]_.
individual II-4 must be a carrier of the diseaseindividual II-4 must be a carrier of the disease , ,

individual II-1 must be a carrier of the diseaseindividual II-1 must be a carrier of the disease , ,

individual II-2 will pass it on to any offspring she hasindividual II-2 will pass it on to any offspring she has , ,

individuals I-1 and I-2 are carriers of the diseaseindividuals I-1 and I-2 are carriers of the disease , ,