Suppose concordance data were collected from a cohort study of twins to study the genetic contribution to the onset of type 1 diabetes, also called juvenile diabetes. Both monozygotic (identical) twins and dizygotic (fraternal) twins who grew up together in the same household were included. The concordance rate was found to be 68 % among monozygotic twin pairs and 5 % in dizygotic twin pairs.What general conclusion about type 1 diabetes can be drawn from these results?a. There is low penetrance of the type 1 diabetes phenotype. Therefore, genetic and environmental effects cannot be estimated.b. The heritability of type 1 diabetes is likely high, indicating that genetics plays a larger role in the development of type 1 diabetes than the environment. c. No results can be drawn because too many potential variables are present in the study to make a reliable conclusion about how twins develop type 1 diabetes. d. The environment plays a larger role in the development of type 1 diabetes than genetics, indicating that heritability is likely low.