The Vanguard 500 Index Fund Tracks the Performance of the S&P

The Vanguard 500 Index Fund tracks the performance of the S&P 500. To do so, the fund buys shares in each S&P 500 company ________.

A) in proportion to the market value weight of the firm's equity in the S&P 500
B) in proportion to the price weight of the stock in the S&P 500
C) by purchasing an equal number of shares of each stock in the S&P 500
D) by purchasing an equal dollar amount of shares of each stock in the S&P 500