Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.
a c _ d a _ d d a _ _ d a c _ d
Answer & explanation
Correct answer: option 1
a c _ d a _ d d a _ _ d a c _ d
The logic followed here is :
a c d d / a c d d / a c d d / a c d d
Hence 'd c c d d' is correct answer