I believe it's "to emphasize the impressive amount of new
ideas that were generated in a short amount
of time".
It's a toss-up, but I would go with 3 because it's the most direct way of saying it. However, I also think that choice 2 might be the answer because it is more ideological.
I hope this helps! Good-luck!
B. Written comments about how or where the action happens
True yes it can have an impact