In the given number series, how many odd numbers are there which are immediately preceded by an even number and immediately followed by an odd number?
5 1 4 7 3 9 8 5 7 2 6 3 1 5 8 6 3 8 5 2 2 4 3 4 9 6

Given: 5 1 4 7 3 9 8 5 7 2 6 3 1 5 8 6 3 8 5 2 2 4 3 4 9 6

Logic: Even Number | Odd Number | Odd Number

​3 odd numbers are there which are immediately preceded by an even number and immediately followed by an odd number.

Thus, correct option is (c).