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Find the choice that makes the argument's conclusion less likely to be true.
Answers that look negative but attack a claim the argument never relied on.
Find the assumption the argument depends on, then pick the choice that undermines it.
Which one of the following, if true, would cast doubt on the experimenters’ conclusion?
Helium-4 was not the only
4% picked this
When fusion is achieved, it
4% picked this
The amount of helium-4 found
Why this is right
Answer C is correct.
Skill tested: Weaken · how this choice captures the argument's function is the move to repeat next time.
83% picked this
Helium-4 gas rapidly breaks down,
2% picked this
Nuclear fusion reactions are characterized
6% picked this
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