Which of the following statements is MOST correct concerning diversification and risk? Risk-averse investors often select portfolios that include only companies from the same industry group because the familiarity reduces the risk. Only wealthy investors can diversify their portfolios because a portfolio must contain at least 50 stocks to gain the benefits of diversification. Proper diversification generally results in the elimination of total risk (systematic and unsystematic risk). Risk-averse investors often choose companies from different industries for their portfolios because the correlation of returns is less than if all the companies came from the same industry