Questions 22-24 please

22. Which of the following provides the best example of a systematic-risk event? A. A strike by union workers hurts a firm's quarterly earnings. B. Mad Cow disease in Montana hurts local ranchers and buyers of beef. C. The Federal Reserve increases interest rates 50 basis points. D. A senior executive at a firm embezzles $10 million and escapes to South America. E. All of the above 23. Which of the following correlation coefficients will produce the least diversification benefit? A. -0.6 B.-0.3 C.O D. 0.8 E. All produce equal diversification benefits 24. What is the standard deviation of a portfolio of two stocks given the following data: Stock A has a standard deviation of 30%. Stock B has a standard deviation of 18%. The portfolio contains 60% of stock A, and the correlation coefficient between the two stocks is -1. A. 0% B. 10.8% C. 18% D. 24% E. none of the above