Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
_Ifir_p_f_rsp_fir_ _Ifi_ _
1
pslilsprr
2
pslilspsr
3
prlilsprs
4
pslilsprs
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
_Ifir_p_f_rsp_fir_ _Ifi_ _