Complete the following short-run cost table using the information provided

Which of the following is one explanation as to why the aggregate demand curve slopes downward?

A) Decreases in the price level raise the interest rate and increase consumption spending. B) Decreases in the price level raise the interest rate and increase investment spending. C) Decreases in the price level raise real wealth and increase consumption spending. D) Decreases in the U.S. price level relative to the price level in other countries lower net exports.

Answer the following questions true (T) or false (F)

1. Between 1981 and 2015, deaths from cancer have increased in the United States. 2. Changes in the health of the average person are relatively unimportant as an indicator of changes in the standard of living. 3. Since 1981, deaths from cardiovascular diseases have decreased in the United States.