Refer to the following number series and answer the question that follows. Counting to be done from left to right only. (All numbers are single-digit numbers only.)
(Left) 3 1 2 9 8 4 1 5 4 2 1 5 8 1 3 4 7 5 3 6 5 7 6 6 1 1 2 (Right)
How many such odd numbers are there each of which is immediately preceded by an odd number and also immediately followed by an odd number?

​(Left) 3 1 2 9 8 4 1 5 4 2 1 5 8 1 3 4 7 5 3 6 5 7 6 6 1 1 2 (Right)

Logic: Odd | Odd | Odd

(Left) 3 1 2 9 8 4 1 5 4 2 1 5 8 1 3 4   7 5 3   6 5 7 6 6 1 1 2 (Right)
So,  such One odd numbers are there each of which is immediately preceded by an odd number and also immediately followed by an odd number.

Thus, the correct option is: (b)