Q6. Mark has been asked the following questions during a job interview. Please help him with the discussion a. What is the main benefit of investing in a stock portfolio rather than in s single stock? What are the contributing factors of this main benefit? b. Comment on the following statement: Beta is important since it tells the investors how risky a stock is. It is equivalent to standard deviation, which is a measure of systematic risk. c. How to identify whether a risk is systematic or unsystematic? Give an example of each. d. The figure below represents an opportunity set for a two-asset portfolio. Indicate the correct efficient portfolios with labels; explain why it is so. Rp Opportunity Set MRP Std. Deviation Figure 06 (d)