How does Gladwell develop readers understanding of LaDue's plans to commit a school shooting? Thresholds of Violence- Commonlit

A. Gladwell researched police reports and presented the information as an article.

B. Gladwell used both statistics and LaDue’s journal to explain how and why he planned the shooting.

C. Gladwell uses both eyewitnesses and interviews with LaDue and his family to explain how and why he planned the school shooting.

D. Gladwell interviewed students at LaDue’s school and pieced together a timeline to explain the events leading up to the school shooting.