Question: A benchmark market value index is comprised of three stocks. Yesterday the three stocks were priced at $10, $18, and $40. The number of outstanding shares for each is 610,000 shares, 510,000 shares, and 210,000 shares, respectively. If the stock prices changed to $14, $16, and $42 today respectively, what is the 1-day rate of return on the index? A 6.00% B 12.62% C 7.77% D 9.29%.