Answer:
The expected point of view in autobiographies is the following one:
First person.
Explanation:
Since autobiographies are books in which people narrate the events in their own lives, it is only natural that the point of view of choice will be first person, that is, with the prevalence of the pronoun "I". Plus, a rather personal tone is used, as in this excerpt from "My Life", by Bill Clinton, former President of the USA:
"At the end of my presidency, I picked a few special places to say goodbye and thanks to the American people. One of them was Chicago, where Hillary was born; where I all but clinched the Democratic nomination on St. Patrick's Day 1992; where many of my most ardent supporters live and many of my most important domestic initiatives in crime, welfare, and education were proved effective; and, of course, where my parents went to live after the war. I used to joke with Hillary that if my father hadn't lost his life on that rainy Missouri highway, I would have grown up a few miles from her and we probably never would have met."
