On its path to reach the retina, light will pass the structures in the following order

The white matter in each half of the spinal cord is organized into three columns. Which of the following is NOT one of the columns?

At the beginning of every quiz/exam, I need to show the proctors (using my webcam) the following:

If I have an issue with the proctoring service during my test that cannot be resolved by myself, I will contact Honorlock Student Support through the chat button on the screen or at at +1 (844) 243-2500.

I understand that I must remain in full view of my webcam for the entire duration of my exam.

I cannot take breaks during the quiz/exam, unless my accommodations allow them. 

For exams and and any quizzes where work needs to be shown, after showing my work to the camera, I need to do the following:

It is ok to use (1) computers or similar devices other than the one I will use to access the quiz, and (2) cell phones (other than when the cell phone is used as a camera).

I understand that typical issues that may (rarely) occur accessing quizzes/exams by Honorlock can be avoided by:  

List 3 reasons why water is essential.