4. Which statement from the article is the best example of the author's central claim?
The critics' most worrisome argument is that opening the door to repairing genetic disorders will also leave the way open for eugenics.

Nonetheless, the same technology that can be deployed to eliminate hereditary diseases can undoubtedly be used to try to build genetically enhanced children

We need to know, for example, how to respond to the for-profit medical community's promise to give us taller, smarter, healthier, cuter, stronger,
and more loving children

Rather than arguing about whether CRISPR should be used in humans, we should refocus the public debate on appropriate safeguards