The first text box is C, since it introduces text with "picture this" and a nice setting they'd like to imagine.
The second text box is B as it flows the hook (which gets the audience's attention) smoothly into the claim.
The third text box is A, as it goes into detail on the writer's claim
The fourth text box is D, as the word "however" indicates there will be a counterclaim
The last text box is E since it goes into detail on the counterclaim.