Do only part 3 and 4 please. need urgent.

Use the following information to answer the questions. 1. Security Beta Standard deviation Expected return Market 1.0 10% 8.0% Risk-free 0.0 4.0% 2% Firm A 1.5 30% 14.0% Firm B 20% 2.0 Firm C 1) Figure out the expected return for Firm A. (25points) 2) Figure out the beta for Firm B (25points) 3) Firm C has a beta of 2.0 and a standard deviation of 25%. Given that Firm A has a beta of 1.5 and a standard deviation of 30%, i) which firm has a higher total risk? Firm A or Firm C? ii) which firm has a higher expected return? Firm A or Firm C? why? (40points) 4) There are three kinds of risk: total risk, systematic risk, and unsystematic risk. Which risk can investors remove by forming a diversified portfolio? (20points) 5) Among three kinds of risk;, which risk determines the expected return on a stock? (20points)