A. Radio announcers should be careful not to insert their opinions into the newscasts.
It is an aggressive word and is usually used when you want the audience to perceive it as a negative action without straight up telling them. In definition, it is harassment, and thus produces an unfavorable effect for those on the receiving end, but the connotation is that the effect is more severe.
It would be simile because it uses the the word “as” to compare
The correct answer is: Nobody knows everything he or she can about the brain.
Explanation:
There are different types of pronouns. They help to replace the noun in a sentence. In this case, the word "<em>Nobody</em>" is part of the indefinite pronouns and they are always used in the singular. So, it is necessary to change the personal pronoun "<em>They</em>" for the singular "<em>He or She</em>".