Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
d _ a _ b _ q d h _ a _ c q _ h _ a _ c q
1
h a c a b d a b
2
h a b a b d a b
3
h a c a b d q b
4
h a q a b d a b
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
d _ a _ b _ q d h _ a _ c q _ h _ a _ c q