Answer:
A) The level of unemployment, the rise in new business starts, the increase in housing sales, and the decrease in national debt indicate that the economy is growing so it would be a good time to buy stock.
Explanation:
Mary should definitely buy stock. All the economic indicators that are doing well according to the financial paper are what is known as leading indicators: indicators whose tendency more or less predicts the tendency of the general economy in the short-term.
In other words, all the signs are indicating that the economy will continue to be strong for a good amount of time, time that Mary can use not only to buy stock, but also to reap the benefits from the stock.