Read the sample student claim. Many people claim that cell phones are unsafe and that the damage they cause has yet to be revealed, but the benefits they provide far outweigh any potential and unproven risks. Which best addresses a potential counterclaim?

Explanation:

Based on the scenario being described within the question it can be said that the one potential counterclaim would be that some types of cancers usually take twenty to thirty years to develop, and cell phone studies have only been monitoring this potential connection for ten years or less. Therefore there is not enough scientific evidence that has been gathered yet to support these claims.

A. Certain types of cancers take twenty to thirty years to develop, and cell phone studies have only been monitoring this potential connection for ten years or less.

Explanation:

the first one is d and the second a