Explanation:

Let's break this down step by step.

Given sequence:

d _ a _ b _ q d h _ a _ c q _ h _ a _ c q

You need to fill the blanks with letters from the options, in the order they’re given.

Let’s try your pick: Option 1: h a c a b d a b

Place them into the blanks:

d h a c b a q d h a c a b q d h a b c q

Now, does it look like a repeating or logical pattern?

After filling, the sequence is:

d h a c b a q d h a c a b q d h a b c q

What’s really happening is that after 'd h a', the next letters get slightly odd: 'c a b', but soon it looks like the pattern is 'd h a c a b q'... which then runs as 'd h a b c q'.

Let’s quickly see what the options really do:

- Option 1 (h a c a b d a b): Brings a possible pattern but doesn’t exactly match what looks like a repeated fragment in what's left of the sequence—especially when looking at the placements around ‘c q’ and repetition.

- Option 2 (h a b a b d a b): Repeats 'a b', but that creates groupings that don’t align with the segments already in the visible parts of the question.

- Option 3 (h a c a b d q b): This one introduces a ‘q’ mid-way, which is placed outside the consistent segments and clashes.

- Option 4 (h a q a b d a b): ‘q’ too early disrupts the pattern, not matching the established order.

Now, what’s the takeaway?

- Option 1 matches the existing pattern best. The blanks, once filled, fit well with the recurring segment after each ‘q’ (d h a ...), and the sequence keeps a logical flow.

- The other options break up the sequence or put letters where they can’t naturally follow the pattern.

So here’s the answer:

Option 1: h a c a b d a b

No need to overthink it. You matched the letters to the blanks and kept the flow going. The segments repeat in a way that feels intentional and structured. Good work spotting that!