The right answer for the question that is being asked and shown above is that: "<span>"Many people assume that germline engineering is necessary to allow couples at risk of passing on a genetic disease to avoid doing so. This is not so."</span>
#1) How does the voice affect the characterization and credibility of the text?
Answer: The way that the voice affect the characterization of the text is by giving the story a humorous tone. Also it affects the credibility of the text by overreacting and exaggerating which as a result makes the text not much credible.
I hope it helps, Regards.
A speech urging students to elect you as class president