Are autobiographies always written or can they be spoken?

If you're asking which phrases sounds the best, I like the second. Obviously someone could dictate their life's story. Think about former slaves, etc. who could not read/write. If you say they "give the autobiography..." it sounds like they are giving them a printed copy. The inclusion of the word "oral" clears it up a little. "Dictates" might be a good word to use.