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: Christians should be allowed to wear the Cross at work.
 perspective: If this were about wearing a badge with a political slogan or something similar, everyone would agree that it was inappropriate. The same principle should apply to iconography.
undermine

claim: Invest in Renewable Technologies rather than Nuclear Power.
 perspective: Mostly unproven, experimental technologies being developed on a small-scale basis that are known as renewables are not  ready to take up the gap the move away from fossil fuels under climate change agreements would create.
undermine

claim: US must get rid of the double jeopardy rule.
 perspective: The double jeopardy principle ensures that only strong cases are brought against defendants.

undermine