Premise : Actions that improve overall well being of people are morally right. Actions that decrease the overall well being of ppl are wrong. Actions that maintain status quo are also right. What is the underlying assumption in drawing such a conclusion? Actions that do good are good. Actions that do bad are bad. And actions that neither do good nor bad are also good. Hence assumption is that actions are good if they don’t do bad.
(A) Only wrong actions would be reasonably expected to reduce the aggregate well-being of the people affected by them
Largely correct, but this is not the assumption of the argument. Right actions too can lead to the detriment of ppl, but these actions are right because on aggregate they lead to well being of ppl. Aggregate being the key word.
B) No action is both right and wrong.
This is no where implied or assumed in the passage. On the contrary, the premise clearly delineates between what is right and wrong.
(C) Any action that is not morally wrong is morally right.
Correct Answer. As pointed out earlier, since actions fall into only two categories, one – those that do bad for the overall well being of ppl and two – those that either do good or do no harm.
(D) There are actions that would be reasonably expected to leave unchanged the aggregate well-being of the people affected by them.
While this is an assumption of the premise, it is not an assumption of the reasoning in the argument. We have to find an assumption that logically implies the reasoning of the argument, which is that actions that do not harm others are good.
(E) Only right actions have good consequences
On the contrary, the argument mentions that actions with no net benefit consequences are considered good too. Hence, this can not be the right answer.