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Refer to the given series and answer the question that follows. All numbers are single- digit number only. Counting to be done from left to right, (
Question

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

A.

Three

B.

Four

C.

Two

D.

Five

Correct option is A

Given: (Left) 4 7 1 5 9 2 6 3 8 4 7 1 9 5 2 6 8 3 7 9 1 5 2 6 8 (Right)
Logic: Odd digit | Odd digit | Even digit
So, three such odd digits are there, each of which is immediately preceded by an odd digit and also immediately followed by an even digit.
Thus, correct option is (a).

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