A student is considering a cross in which two physically linked genes are being investigated. The results of the cross yield offspring in the following phenotype classes:
35% Parental type 1
35% Parental type 2
15% Recombinant type 1
15% Recombinant type 2
When reporting the distance between linked genes, which of the following is a correct representation for the distance between two genes that exhibit a 30% recombinant progeny in a given cross?