9 can go 10 times into 91
because 9 times 10=90
So that the group can look for strengths and weaknesses in the ideas
I believe that the closest synonym for the word overwhelmed is awestruck. It isn't jubilant, because that means happy. And overwhelmed isn't necessarily happy, it is just a strong emotion. Flattered and gracious just don't fit here.
The answer is A hope that helps