How many 1000's, 100's, 10's and 1's should be added to give largest four digit number?

How many 1000's, 100's, 10's and 1's should be added to give largest f

1.	How many 1000's, 100's, 10's and 1's should be added to give largest four digit number?
A.	9, 9, 9, 9
B.	1, 0, 0, 0
C.	9, 0, 9, 9
D.	1, 1, 1, 1
Answer» B. 1, 0, 0, 0