Which sequence of letters when placed in the blanks one after the other will complete the given letter series ?
ab _ ba _ abab _ _
A
aaaa
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B
babb
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C
aaba
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D
aaab
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Solution
The correct option is D aaaa Option A is the correct answer. Explanation: Divide the series in equal parts ab _ /ba _/ aba/b _ _ The series aba and baa are repeated alternatively. aba /baa/aba/baa