In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.
a _ cdaab _ cc _ daa _ bbb _ ccddd
A
bdbda
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B
bddca
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C
dbbca
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D
bbbac
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Solution
The correct option is C bbbac The series is abca / aabbccdd / aaabbbcccddd.Thus, each letter of first sequence is repeated two times in the second sequence and three times in the third sequence.