How will the right answer fit in terms of support and conclusion?

Only the right answer will include a conclusion supported by the principle in the passage.

Highlight the main conclusion in the passage, if there is one:

The passage is just a principle, which will be support for the right answer.

[SUPPORT].

Map the wording of the answers to the wording of the passage:

(A) …So the government is unjustified…

The principle only gives conditions for the government being “justified”, it doesn’t give any support for saying the government is “unjustified”.

(B) …is justified in fining my neighbor for not mowing his lawn…

It should be pretty clear that not mowing your lawn doesn’t “increase the likelihood of physical harm to others”, so this doesn’t fit the condition in the passage.

(C) …is justified in requiring motorcyclists to wear helmets.

Not wearing a helmet doesn’t cause “physical harm to others“, so this doesn’t fit the condition in the passage.

(D) …has been of little help to people suffering…

You know that’s not the same as increasing “the likelihood of physical harm”, so this doesn’t map to the condition in the passage either.

(E) To further her own political ambitions…people would have gotten hurt.

This answer maps to both conditions in the passage. Jill is “not motivated by a desire to help others”, and her action definitely “would increase the likelihood of physical harm to others”. Winner.

(E) is the correct answer.