[1] olaudah equiano wrote a book. [2] it was about his experiences as a slave and, later, as a free man. which is the best way to combine sentences 1 and 2? olaudah equiano wrote a book, which was about his experiences as a slave and, later, as a free man. olaudah equiano wrote a book, even if it was about his experiences as a slave and, later, as a free man. olaudah equiano wrote a book, until it was about his experiences as a slave and, later, as a free man. olaudah equiano wrote a book, although it was about his experiences as a slave and, later, as a free man.