Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
F U _ U _ E _ U T _ _ E F _ T _ R E _ _ T U _ E
1
TRFURUUFUR
2
FUFRUUFTRF
3
TRFUFRUTUF
4
FUFRUTFRRF
Select the option that represents the letters that, when sequentially placed from left to right in the blanks below, will complete the letter series.
F U _ U _ E _ U T _ _ E F _ T _ R E _ _ T U _ E