The writer mentions how his or her interest in this field was sparked. - This would make a strong introduction for a personal statement because it is important on how the writer started to become what he/she is now.
The writer states how a personal experience relates to a future goal. – This would also be a great introductory statement where the writer could expand his/her journey in the body of his output.
The writer reflects on a past educational experience. – This would also be a god introduction that will lead to the writer’s current disposition of who he/she is right now.