Answer:
D. S&P 500
Explanation:
The market index that is used as a proxy for the portfolio of the market in the Capital Asset Pricing Model (CAPM) is S&P 500. This refers to a broad index of the market that involves the 500 stocks performance listed on the US stock exchange. Also it used for the calculation market weighted so that the value of the index could come
Hence, the correct option is d.