Answer:
4! = 4 x 3 x 2 x 1
4! = 12 x 2 x 1
4! = 24 x 1
4! = 24
Let me know if this helps!
You have to add more there is no context here, apologies but try to make another question with maybe a picture and more text?
That would be B. 3.124 Kilometers the reason would be because for every Kilometer there are 1000 meters
I hope this helps :3