The correct option is D 5
The given series is: 9 3 4 5 9 3 5 9 3 6 4 3 9 3 3 5 3 9 5 3 9 3 7 5 7 5 9 3 9
For the number of 3's preceded by 9 but not followed by 5:
9 3 4 5 9 3 5 9 3 6 4 3 9 3 3 5 3 9 5 3 9 3 7 5 7 5 9 3 9
Thus, there are 5 such 3's which are preceded by 9 but not followed by 5