Question

Refer to the following number series and answer the question that follows (all numbers are single-digit numbers only). Counting to be done from left to right only. (Left) 8 7 6 6 7 6 9 9 6 4 9 7 4 4 7 9 6 6 8 4 3 6 7 (Right) How many such odd digits are there, each of which is immediately preceded by an odd digit and also immediately followed by an odd digit?

A One
B Two
C None
D Three
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