What is a major difference between autobiographies and biographies?

Question

Autobiographies are written during the time period in which they take place.

Autobiographies are written in the passive voice.

Autobiographies are considered expository writing.

Autobiographies are written in the first-person point of view.

Answer 1

Biographies, on the other hand, are written about someone else's life by a different author and are written in the third-person point of view.