(10) Though one might guess that the elevator rides along the outside of the tank, it is actually situated in the tank's center, the clear walls giving readers a truly up close and personal experience with aquatic residents. (11) The elevator lets visitors observe the dedicated tank divers hard at work. (12) This includes watching the divers feed the inhabitants and clean the massive tank. (13) Getting an inside look at people performing this unique job is as interesting as watching the swarms of fish.
Kelly wants to add the following sentence to third paragraph. Although this 360- degree allows people to watch the fish from practically anywhere inside their watery habitat, visitors can catch a glimpse of much more than fins, gills, and tails. Where is best place to insert this sentence?
a. after sentence 10
b. after sentence 11
c. after sentence 12
d. after sentence 13