Answer:
Southern unionist
Explanation:
A Southern Unionist was a white Southerner who either opposed secession and the Confederate States of America and/or supported the Union or stayed neutral.
If a human brain is not flexible, it will be a lot more limited than it already is. In another way of looking at it, you can even say that if it does not expand, it is only a box or a storage. Our brains do not only work as storage of information! We also use our brains for thinking etc. If it is rigid, when a lad hit you accidentally on the face with a paper, you may resort to violent retaliation.
Brains should be adaptable on the grounds that on the off chance that they weren't we could never have the capacity to expand our astuteness. Individuals are more adaptable mentally on the grounds that we can turn our hands to more mind boggling things and can learn better.
A. worrying increases one's body arousal which can prevent normal sleep. Sometimes he should forgot his problems even for just one day and have a rest or leisure time with himself and enjoy his life. He can ask a day-off or one day leave in order to restart himself and think more clearly and having a rest can improve his ability to function properly.
It would be A and hopefully this help