[CCCure CISSP] Access Control - Brute Force Attack

[Nimal Gunarathna]

Hello Everyone, I have a question for you all?
1. If the password is made up of 4 numeric characters, how many attempts    needed for a successful brute force attack?
A. 10000B. 11110C. 1024D. 11100
What I think: Every numeric character has 10 choices. Then 4 characters 10^4 = 10000 choices andthe answer should be A.  But the right answer is B. How is that possible?                        
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