Families with underage children make up much of the population, but because only adults can vote, lawmakers in democracies pay too little attention to the interests of these families.
Conclusion (thus / should)
Parents with underage children should be given additional votes to cast on behalf of their underage children in order to achieve fair representation for their families.
Evidence
These types of families make up much of the population, but because only adults can vote, lawmakers pay little attention to the interests of these families.
Evaluate
Most correct answers on questions with Principles in Answers sound like "If Evidence, Then Conclusion" linking ideas.
But that feels like a weird fit here. We could maybe say that the author is assuming, .
This conversation overall involves a Plan / Recommendation. Authors who endorse a plan are usually assuming several things: - the plan is feasible - people will cooperate with the plan as intended - the plan won't backfire - the plan addresses the main source of the problem
It seemed like the author was concerned with the problem that lawmakers in democracies pay too little attention to the interests of families with underage children, because only the adults can vote.
So the author seems to be assuming that a result of her plan would be that lawmakers would pay more attention to these families.
Thus, she seems to assume that, .
Goal
Ultimately, it feels hard to know where this one is going. Since the question stem sounds like 1/2 Principle, 1/2 Necessary Assumption, let's look for an answer the author is clearly thinking.
The correct answer, if negated, should sound like an objection to the Plan or to the reasoning.