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 United States should maintain its embargo against Cuba.
 perspective: Sanctions harm the Cuban people. 
undermine

claim: There is a world Water crisis.
 perspective: In 2020, an additional 17% of fresh water will be required to satisfy human needs
support

claim: We must hold all U.S. presidential primaries on the same day.
 perspective: The current political system is hugely expensive, and a national primary could control the scale of spending in campaigns.

support