AMC 10B 2004 Problem 6

Past Contests AMC 10 2004 Part B
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1

Which of the following numbers is a perfect square?

Answer Choices
A. 98 ! . 99 !
B. 98 ! . 100!
C. 99 ! . 100 !
D. 99 ! . 101 !
E. 100 ! . 101 !