The answer is C - It is a waste to use gold for everyday purposes, because it is hard to find.
The answer is impassive because impassive is when someone is emotionless.
I think the best answer from the choices listed above is option D. A valid scientific claim is best described by the statement "<span>The claim is supported by at least ten scientists in addition to the original researcher</span>". This is because this claim is being supported by a number of experts in that certain field.
