In this task you will be given a claim and a perspective. You should determine whether that perspective supports or undermines the claim. If the perspective could possibly convince someone with different view, it is supporting, otherwise it is undermining.

claim: The US and its allies were justified in taking military action against Iraq following Iraq’s invasion of Kuwait.
 perspective: The US did not have legitimate authority
undermine

claim: All Americans should have the right (be entitled) to health care.
 perspective: The founding documents of the United States do not provide support for a right to health care. 
undermine

claim: The development of genetically modified organisms have to be banned.
 perspective: Allowing GM foods is the beginning of a slippery slope.

support