Direction: In each of the following letter series, some of the letters are missing which are given in that order as one of the alternatives below it. choose the correct alternative.
-
a__bb__baa_bbb__aa__
-
- .aabba
- .bbaab
- .abaaa
- .baabb
- none of these
Correct Option: C
The pattern is .. number of a's increases by one and b is decreases by one.