Oh my god... I read this as a Strengthen question and was so confused.

They are helping them. They are basically limiting how much the nuclear plant owners can be punished if a nuclear accident was to happen.

If the question stems asks you "which of the following most strongly supports the above conclusion", then it is a Strengthen/PSA question.

However, if it asks "which of the following conclusions is most strongly supported by the premises above", then it is an MSS question.

The distinction between them is whether a conclusion is stated and you have to support it or if only premises are stated and you must pick the conclusion. Both of them include the phrase "most strongly support" but the context of the whole question stem is very important.

Don't assume if you see that phrase alone that it's one type of question or the other. Same thing when you see the word "principle" in the stem, it could be Principle conform or Strengthen/PSA.

Consider this though, nowhere in option E does it say that only microwaves can create little heat pockets. Of course it's poorly worded. It's supposed to be.