Read the following context and choose the best option to answer the question.
Context: They all seem to sound the same and look the same , like a clone 's clone 's clone . I think that the most recent artist I enjoy is Joanna Newsom . I really love her music . Apparently I have a weak spot for weird voices ;-) But honestly , I think what she does is very special and I ' ve never heard something like her before .
Question: What is the reason they are like a clone 's clone 's clone ?
Options: 
- They are triplets , identical .
 - None of the above choices .
 - They have genetic material in common .
 - They copy each other .


They copy each other .