Hey All,
Hopefully I can help with this one. The passage itself uses a lot of confusing verbiage to make you think it's very technical, but the reality is pretty straightforward. One can go at it from a draw a conclusion standpoint, but it functions weirdly well as a straightforward find the assumption question:
Conclusion: Gov't should only outlaw strikes when nobody else can do the work.
Premises: Without strikes, disputes settled by binding arbitration. This is a costly mistake.
The question we have to ask is WHY is this a costly mistake? Only one thing would explain it.
Assumption: Binding arbitration is good for the workers/bad for the gov't. (i.e. gov't loses more $ on this kind of dispute).
(A) Where public-service workers are permitted to strike, contract negotiations with those workers are typically settled without a strike.
Problem: The question here is about whether strikes can be bad for government, not whether or not they happen.
(B) Where strikes by all categories of pubic-sector workers are outlawed, no acceptable substitutes for the services provided by any of those workers are available.
Problem: This is what the conclusion recommends, but it doesn't help us understand why.
(C) Binding arbitration tends to be more advantageous for public-service workers where it is the only available means of settling labor disputes with such workers.
Answer: Aha. Now we're told that binding arbitration tends to help out the worker bees. Interesting.
(D) Most categories of public-sector workers have no counterparts in the private sector.
Problem: We don't care about the private sector, or really whether or not "most" categories have counterparts elsewhere.
(E) A strike by workers in a local government is unlikely to be settled without help from an arbitrator.
Problem: That wasn't the question. The question is whether it's better to do it through binding arbitration (which is what you get without a strike), or the type of arbitration you get after a strike (which conforms to precedent).
Hope that helps!
Tommy Wallach