First, second, third, and fourth for the first read outsider

Does anyone know the answer to the question?

What goes first create the slideshow or outline the presentation.

Which sentence is an example of objective, third-person writing that could be found in a scientific essay? a. i was 15 years old when i developed an eating disorder. b. my sister developed an eating disorder when she was a teenager. c. eating disorders often appear during the teen years. d. you are most likely to develop eating disorders during your teenage years.