Answer these questions referring to the symbol-letter-number sequence given below:

What should come in place of the question mark (?) in the following sequence ? [email protected], KDQ, ?, 9IS

[ A ]    ZW1
[ B ]    NQ
[ C ]    @8N
[ D ]    $W9
[ E ]    None of these
Answer : Option A
Explanation :
The first, second and third element of each group is sixth element to the right of the respective element of previous group as given in all in the sequence.
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