What Is the Importance of Ancestry Research Based on Mitochondrial

What is the importance of ancestry research based on mitochondrial DNA?

A) It allows individual to trace disease in their family lines that could be potentially fatal.
B) It shows the importance of cultural beliefs and the symbolic power of demonstrated ancestry.
C) It allows us to reconstruct the human evolutionary tree and better understand our history.
D) It allows us to identify how our family migrated and also identify our distinct biological heritage.
E) It provides individuals with a valid way to trace inheritance and gain access to legal representation.