In the following question a letter-series is given, in which some letters are missing. The missing letters are given in the proper sequence as one of the alternatives. Choose the correct alternatives. ab __ d __ aaba __ na _ badna _ b
A) andaa
B) babda
C) dbanb
D) badna
Answer: A) andaa
Explanation:
The series is abadna/abadna/abadna/ab. The pattern 'abadna' is repeated