Question

what was the most challenging problem kranz had?

Answer 1

well who is Kranz?

Answer 2

Eugene Kranz

Answer 3

Is he from a book?

Answer 4

Apollo 13

Answer 5

okay hold on...

Answer 6

what are the answers you can choose from?

Answer 7

its not a multiple choice i need to write a sentence

Answer 8

http://www.space.com/17250-apollo-13-facts.html

Answer 9

Did you read about him in the lesson? If so, try readin thata gain to find out. If not, try reading his Wikipedia page. < http://en.wikipedia.org/wiki/Gene_Kranz > and looking for challenges he had there. Try the "Early Years" and "NASA Career" section.