In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it.
b_abba_abbba_aab_bbaa_aa
Choose the correct alternative:
1
baaab
2
babba
3
aabba
4
aaaba
In the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it.
b_abba_abbba_aab_bbaa_aa
Choose the correct alternative: