The s& p 500 attributes an increase in the annual rate of return for firms in 2009 to

Thank you for posting your question here. I hope the answer will help. Below are the choices:

a.excellent products.
b.employee satisfaction.
c.superb top management.
d.strong stock performance.

I think the answer is excellent products refers to the quality and quantity of products and goods available to a population at a given time.

Ancient romans and Greeks