Miguel is interested in teen smoking. He decides to gather stories of teens' first smoking experiences. He identified six 17-year-old smokers and got permissions and consent from both the teens and their guardians. He then asked each teen to tell the story of his/her first smoking experience.

Miguel asked each teen if he/she kept a diary around the time of the first smoking experience. Two of the teens did and shared parts of their diaries with him. Why did Miguel ask for the diaries?

Group of answer choices

To triangulate data

To check accuracy of their memories

To save time in recording interviews

To learn about the teens' voices