Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and by depicting them in a cladogram. which of the following best describes a challenge in classifying organisms this way ?

a) millions of species on earth & cladogram not practical
b) impossible to tell which organisms are closely related on cladogram
c) cladograms are detailed oriented and impossible to show evolutionary relationships
d) there is limited number of ways to classify information some many of cladograms end up looking similar