what makes a person the same person over time?

(Write an essay which you compare and contrast at least two and up to three different answers to the question “what makes a person the same person over time?” Make reference to at least one of the arguments provided by the characters from the reading by Perry.) I attached a picture of the book. The answers for the questions: 1- same human body. 2- same DNA.

http://writerslabs.com/file?alias=Perry%20%281978%29%20A%20Dialogue%20on%20Personal%20Identity%20and%20Immortality.pdf&file=543319626_support_Perry_1978_A_Dialogue_on_Personal_Identity_and_Immortality_R5qjkRMBtFZCn4H.pdf