Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
_ B _ A _ SAB _ _ B S
1
ASBAS
2
ASBSA
3
BASBA
4
SABAS
Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
_ B _ A _ SAB _ _ B S