Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
Y _ B P _ _ A _ P K _ A B _ K Y _ B P K
1
A K Y B Y P A
2
A K Y B Y P K
3
A K A Y K P A
4
Y A K B Y P A
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
Y _ B P _ _ A _ P K _ A B _ K Y _ B P K