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: Professional sportsmen must be required to represent their countries at the international level.
 perspective: Playing for your country is a mortal duty. 
support

claim: Gay couples should be allowed to marry.
 perspective: The institution of marriage has traditionally been defined as being between a man and a woman. 
undermine

claim: Corporal Punishment Should Be Reintroduced.
 perspective: Corporal punishment is an inappropriate punishment that harms the education of children.

undermine