Select the combination of letters that when sequentially placed in the blanks of the given series will complete the sequence.
R _ T _ T U _ _ R U _ S _ S T
1
SSTURR
2
SRTURU
3
STURSR
4
URTSSR
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the sequence.
R _ T _ T U _ _ R U _ S _ S T