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The Question Refers to the Following Table, Which Compares the Percent

question 18

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The question refers to the following table, which compares the percent sequence homology of four different parts (two introns and two exons) of a gene that is found in five different eukaryotic species. Each part is numbered to indicate its distance from the promoter (for example, Intron I is the one closest to the promoter) . The data reported for species A were obtained by comparing DNA from one member of species A to another member of species A.
% Sequence Homology
 Species  Intron I  Exon I  Intron VI  Exon V  A 100%100%100%100% B 98%99%82%96% C98%99%89%96% D 99%99%92%97% E 98%99%80%94%\begin{array} { | l | l | l | l | l | } \hline \text { Species } & \text { Intron I } & \text { Exon I } & \text { Intron VI } & \text { Exon V } \\\hline \text { A } & 100 \% & 100 \% & 100 \% & 100 \% \\\hline \text { B } & 98 \% & 99 \% & 82 \% & 96 \% \\\hline \text { C} & 98 \% & 99 \% & 89 \% & 96 \% \\\hline \text { D } & 99 \% & 99 \% & 92 \% & 97 \% \\\hline \text { E } &98\%&99\%&80\%&94\%\\ \hline\end{array}
Based on the tabular data, and assuming that time advances vertically, which phylogenetic tree is the most likely depiction of the evolutionary relationships among these five species?


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