Which of the following statements is true? a. if a portfolio has a positive investment in every asset, the standard deviation on the portfolio can be less than that on every asset in the portfolio. b. labor strikes and part shortages are examples of market-wide systematic risks. c. market-wide systematic risks can be significantly reduced by diversification. d. asset-specific unsystematic risks can be substantially reduced with less numerous and less correlated assets in a portfolio.

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition. b) one-fourth of the daughters of an affected man would have this condition. c) one-half of the daughters of an affected father and a carrier mother could have this condition. d) only if a woman is xxx could she have this condition.