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Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_sr_tr_srs_r_srst_
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- ttssrr
- tsrtsr
- strtrs
- tstttr
Correct Option: D
The given letter series in below pattern.
t sr s tr
After completing the pattern, we will get complete letter series.
t sr s tr/ t sr s t r/ t sr st r