The correct answer is D. To tell significant stories from one’s life
Step-by-step explanation:
A memoir refers to a type of bibliographical text written to describe one or more events/memories that had an impact on the author's life. Additionally, memoirs rely mainly on written words rather than on images or drawings and use narrative writing as well as techniques related to the narrative mode. Due to this, memoirs are appropriate if the author wants to tell the audience about important moments or stories from his/her life using text, thus, one reason authors might choose the memoir form is "to tell significant stories from one’s life".