The Dow is used to measure the performance of the entire stock market ( D )
Explanation:
The Dow Jones simply known as the Dow is a stock market index that is used to measure how a group of 30 large companies are performing on the stock exchange market in America. note this companies are listed in the stock exchange market as part of the economy as a whole.
from 1921 to September 1929 the value of the Dow went as high as six (6) folds in the stock market capping what will be seen as a permanent plateau. the Dow only measures a part of the stock market and not all.
