<span>a current study on the effects of stress on the body published by a medical journal
This would be the best source because it is the most current, least subjective, and most reliable. Since it is not personal experience or reaction, but based on medical tests, it would be the most accurate. Also, textbooks can be outdated so since this is current, it would add to the accuracy. </span>
If you accept either C or D as the correct revision then you have to accept both of them. Hence the best way to treat the sentence is to ignore both of them.
B is not correct either. You can over punctuate.
That leaves A.
Sometimes the right answer to many things is to do nothing. My dad used to say "Don't fix what isn't broke."
A is the answer <<<<<
Answer: They locked her in a closet.
Explanation:
Answer: false
Explanation:
Kentucky joined the Union on June 1, 1792