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.
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Question: claim: social networking sites should be banned at the workplaces.
 perspective: Much time can be wasted on social networking sites.

Answer: support


Question: claim: Social networking sites are good for our society.
 perspective: Social media helps job-seekers connect with employers

Answer: support


Question: claim: social networking sites should be banned at the workplaces.
 perspective: Social media is good for the economy.

Answer:
undermine