@Kuma there are detailed written explanations for this question on the message boards.
I am reposting this below for your reference but please make sure you are checking previous threads before posting a question that we have already answered.
P1: "Unless our nation redistributes wealth, we will be unable to alleviate economic injustice and our current system will lead inevitably to intolerable economic inequities."
"Unless" introduces the necessary condition and the negation of the other part of the sentence is the sufficient condition. So the necessary condition here is "our nation redistributes wealth:"
==> NRW
The negation of the other part of the sentence, i.e. "we will be unable to alleviate economic injustice and our system will lead inevitably to intolerable economic inequities," is our sufficient condition (remember when negated "and" becomes "or"):
AEI = able to alleviate economic injustice not IEI = will not lead inevitably to intolerable economic inequities
P1: AEI or not IEI ==> NRW not NRW ==> not AEI & IEI
P2: "If the inequities become intolerable, those who suffer from the injustice will resort to violence to coerce social reform."
SIRV = resort to violence to coerce social reform
P2: IEI ==> SIRV not SIRV ==> not IEI
P3: "It is our nation's responsibility to do whatever is necessary to alleviate conditions that would otherwise give rise to violent attempts at social reform."
Our correct answer is answer choice (B), i.e. "It is our nation's responsibility to redistribute wealth." How do we conclude this?
Well, P3 states that it is our nation's responsibility to do whatever is needed to alleviate conditions that would give rise to violence.
From the contrapositive of P2 we know that if those who suffer from injustice will not resort to violence, then the inequities have not become intolerable.
The sufficient conditions of P1 are AEI or not IEI. Thus, we can connect the contrapositive of P2 to the second part of P1 to conclude that the nation redistributes wealth, like so:
Not SIRV ==> not IEI ==> NRW
The nation redistributing its wealth is, therefore, the ultimate necessary condition to make sure that those who suffer from injustice will not resort to violence. Thus, since it is the nation's responsibility to take whatever measures necessary to alleviate conditions that would give rise to violence, it is the nation's responsibility to redistribute wealth.
Hope this helps! Please let us know if you have any other questions.
stephaniemeagliaJune 22, 2019
Thank you for the Written explanations those are definitely helpful but if I can offer some feedback I do agree that the video explanations are much better and more helpful So it's definitely nice to get the videos for each question
stephaniemeagliaJune 22, 2019
And part of the reason for that is because with the video we can see the full question and the exclamation at the same time whereas on these message boards we cannot
stephaniemeagliaJune 22, 2019
*explanation
pmornelasperez@ucdavis.eduAugust 5, 2020
Hello, thank you for explaining this ! The other explanations on the boards confused me more.
