You have to use imagery otherwise they won't have an idea of what your talking about.
Answer:
but much research has been done and more has learned about brain injuries in the last 5 years
Explanation:
because this shows they are telling more players about the injuries and informing them about the dangers of playing
In the preamble show, the uses of words such as justice and tranquility is to be used as a Diction.
In the show, Diction is the choice of words that you use or the speaking style that you want to use in your speech.
The answer is C.
Hope this helps, if you have any other questions feel free to ask :)
The correct answer is C.
Hope this helps!!