Which work best describes the tone of a letter? Please help I’ve already missed 4 and if I miss another one I won’t pass!

The tone of the letter should be confident. Brisk would be the best possible answer. (If im wrong then im extremely sorry) But it should be Brisk.

Explanation:

research question: do the predicted benefits of genetic enhancements outweigh the possible negative consequences of this technology?  

what information do i need to research in order to answer this question?  

-predicted benefits of genetic enhancements

-negative consequences of genetic enhancements

-existing, if any, consequences of the new technology

-possible consequences if the technology is perfected

what sources will have the information?

-scientific research documents or news articles summarizing research

-articles in science and medical journals, magazines, and electronic databases

-books

-experts at genetics: geneticists, scientists, professors

here you go have a nice day

they are direct opposites. they can both be corrupted. they are inseparable.