Select the alphanumeric group from the given alternatives that can replace the question mark (?) in the following series.
87K, 96P, 121U, 170Z, ?
1
231F
2
215F
3
251E
4
241F
Select the alphanumeric group from the given alternatives that can replace the question mark (?) in the following series.
87K, 96P, 121U, 170Z, ?