Answer:
The correct answer is letter "D": The Wilshire 5000 index is a broad U.S. equity market index.
Step-by-step explanation:
The Wilshire 5000 is the broadest American-based stock index that includes over 6 700 publicly traded companies. Among all of them, companies with higher firm value have a bigger impact than those with lower value within the index. The Wilshire is mainly designed to keep track of the overall performance of the U.S. stock markets.