Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
RSTU__RS__UY__STUXR__TUW1
TRZS
2
ZTRS
3
ZTSR
4
RZTS
Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
RSTU__RS__UY__STUXR__TUW