The answer is letter D.
When the body is experiencing stress it usually responds by producing additional enzymes in the liver and kidneys causing an increase in blood flow in these organs. Not only is stress visible on the outside but it clearly affects how the internal organs function within the body. Stress induces chemical reactions in the brain that trigger the response of the immune system of the body. The kidneys and the liver are part of the filtration and excretion of chemical processes that occur within the body that is why they are affected by stress hormones directly.
Nobody looses an exact certain amount every year, the amount of weight you loose or even have varies on your genes, diet, your emotional health, amount of exercise, gender and, hormones. so since we are all different and weigh different amounts there is no set amount for each year.
Conflict resolution is a way for two or more parties to find a peaceful solution to a disagreement among them .
I hope that's help !