Question

In the series given below, count the number of 8s each of which is not preceded by 4 but is followed by either 3 or 6. How many such 8s are there? 2 8 3 7 4 8 8 9 8 8 8 3 4 8 3 8 6 5 9 3 7 8 9

A 1
B 3
C 5
D 7
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