AMC8 1991 Problem 13

How many zeros are at the end of the product

25 \times 25 \times 25 \times 25 \times 25 \times 25 \times 25 \times 8 \times 8 \times 8 ?

Answer Choices
A. 3
B. 6
C. 9
D. 10
E. 12