Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
D _ _ S H T _ _ R I S H _ _ D R I _ _ T I D R I S _ _ .
1
RDIITISHHT
2
RDIISHTIHT
3
RIIDTISHHT
4
RITIDTSHHT
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
D _ _ S H T _ _ R I S H _ _ D R I _ _ T I D R I S _ _ .