This is an inference question. Here we're asked what we can infer must not be true (false). It's equivalent to a question asking "Each of the following could be true EXCEPT."
In this question we learn two things:
1. The goal of a new law banning smoking at work is to protect employees.
2. It's written in a way that it cannot prohibit smoking at home.
Notice how much stronger the second statement is.
We know that (E) is false because folks working in a home are working where the law cannot prohibit smoking. So, the law will not protect them (regardless of the goal). Thus, (E) is our answer.
(A) is out of scope - and so thus could be true. We know nothing of the legislators' intentions.
(B) is similar to (A) - we don't know about the supporters' beliefs.
(C) is unsupported. It might be true that the law only affects workplaces.
(D) is totally possible, totally out of scope.
Easy question if you could keep a handle on that tricky question stem!
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