Which of the phylogenetic (or evolutionary) trees below show the same evolutionary relationships among species

(Note: You will find the analyzed phylogenetic trees in the attached file)

Trees A and B show the same evolutionary relationships among species.

Explanation:

In phylogenetic trees, two species are more related if they have a recent common ancestor. On the other hand, two species will be less related if their common ancestor is not a recent one and is located far away in the tree.  

In the phylogenetic tree, the taxonomic groups of interest are located in the extremes of the lines called branches. In the present example, X, Y, and Z  are the species located in the extreme of the branches. The ramification point, which is also called "node" or divergence point, represents the location of the most recent common ancestor.  

The basic elements in a phylogenetic tree are:

The three shown trees have three taxonomic groups X, Y and Z.  All of them have a common ancestor, which can be noticed because of the presence of the root. The first node in the three cases expresses the first divergence in evolution, where one two groups got differentiated from the other. The second node expresses a second divergence, where that group separated into two other groups. Now, analyzing each tree we can say that:

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.