D is the rightful answer for this question. Prolonged stress can create and even promote bitter diseases such as cold, flu, and heart disease.
All of those ARE reasons why communicable diseases kill fewer people today except for B. Your answer is B.
A.
<span>Dreams help people strengthen useful neural connections and weaken not useful ones.</span>
<span>This is true because late on the athletes from South Africa were kicked out of the competition. </span>
<span>hormone insulin<span>The hormone insulin is a main regulator of the glucose (sugar) levels in the blood. Insulin is produced in the pancreas. To be more specific, it's produced by the beta cells in the islets of Langerhans in the pancreas. When we eat, glucose levels rise, and insulin is released into the bloodstream.</span></span>