hello i need help for these 3 questions, thanks

Stock A has a beta of 1.6 , a standard deviation of 25% and an expected return of 17 percent. Stock B has a beta of 0.75 , a standard deviation of 35% and an expected return of 10.4 percent. Which of the following statements is correct? A. Stock A has more total risk. B. Stock A has less systematic risk. C. Stock B has more systematic risk. D. Stock B more total risk. E. Stock B should have a higher required return since it has a larger standard deviation. 5. You have determined that the common stock of Google should have a required return of 12.50%. Based on the actual current market price, you have estimated an expected return of 11%. Therefore, A. You believo Google is underpriced. B. You believo Google is correctly price. C. You believe Google is overpriced. D. There is no relationship between price and return. E. A better buy would be Apple stock. 6. You are deciding whether a particular investment is worth purchasing. Assume you require an 11% return per year and that you are promised $5,000 one year from now on the investment. If the actual current market price of the investment is $4,500, would you be willing to make the purchase? A. No. $4,500 is too much regardless of the promised repayment. B. No. the most you would pay is about $4,000. C. Yes. Why wouldn't anyone want to earn $500 ? D. No. It promises a return less than 11%. E. Yes. You would pay as much as about $4,505