Explanation:

Alright, let's break it down step by step:

- Here’s how the pattern works:

- REMOVAL turns into MEROLAV: You rearrange and swap certain pairs (RE?ME, MO?RO, VA?LA, and the last L stays).

- TYPICAL becomes PYTILAC: It’s a similar shuffle—the pairs get moved around and the sequence of the letters isn’t just reversed; it’s a specific pattern.

- Third set: NUCLEAR: We’re looking for the option that follows that same pattern.

Let’s look at the options:

- Option 1: CUNRLAE – This moves some letters but doesn’t fit the pattern of rearrangement.

- Option 2: CUNLREA – Almost, but the placement is off.

- Option 3: CUNRAEL – That’s not matching the internal logic.

- Option 4: CUNLRAE – Now, this follows the pair mixing from the first two examples.

You picked:

Option 4: CUNLRAE

Here's the takeaway:

- This series doesn't just reverse; it swaps specific pairs, and CUNLRAE keeps that pattern.

- So you nailed it—nice work.