Why is the volatility of the Market less than the volatility of any individual equity investments within the portfolio in the prior question ?

Multiple Choice The volatility of the market can never be less than that of an individual security none of the above The more stocks the investor puts into her portfolio, the more sensitive the portfolio The more stocks added to a portfolio, the less likely an investor will have included over or under priced stocks. The more stocks an investor puts into her portfolio, the more likely that price changes in one stock in any given direction will be offset by an opposite-direction price change of another stock.