Select the option that represents the letters that, when sequentially placed from left to right in the blanks, will complete the letter series.
_ a d _ v k _ a _ d v v _ r a a _ v _ k r
A. a v r k a d v
B. a v r a k d v
C. v a r v k d v
D. a v r v a d a
Sol:
a a d v v k r /a a d v v k r/ a a d v v k r
