If there is an election, you can either vote or not. If you vote, you have the satisfaction of knowing you influenced the results of the election; if you do not vote, you have no right to complain about the results. So, following an election, either you its results or you will have no right to complain.
What this question is testing
Conclusion
The author is laying out a clean either/or: either you voted (and got satisfaction) or you didn't (and forfeited your right to complain). One way or the other, you end up with one of those two outcomes.
Evidence
The reasoning is built on a forced two-way split. There are only two options — vote or don't vote — and each option has its own consequence. Voting gives satisfaction. Not voting takes away the right to complain. Since one of the two must happen, one of the two consequences must follow.
Evaluate
For Parallel Reasoning questions, abstract the structure away from the topic. Here is the skeleton:
The right answer needs to match this skeleton exactly: a forced binary choice (X or not-X), two conditionals — one for each branch — and a conclusion combining the two outcomes with "or."
Watch out for answers that introduce extra conditions, missing branches, or comparisons (better off, more likely, etc.) that the original argument does not have.
Goal
Find the answer with a clean A-or-not-A split, two distinct outcomes (one per branch), and a conclusion that says "either outcome 1 or outcome 2."
Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.