Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series.
_an_in_a_t_nta_tin
1
tntini
2
nnttii
3
tntnin
4
tttnin
Select the combination of letters that when sequentially placed in the gaps of the given letter series will complete the series.
_an_in_a_t_nta_tin