In the following number sequence, how many such even numbers are there which are exactly divisible by its immediate preceding number but not exactly divisible by its immediate following number ?
3 8 4 1 5 7 2 8 3 4 8 9 3 9 4 2 1 5 8 2
1) 1
2) 2
3) 3
4) 4
5) None of these

Explanation

2, 2