Q1 need to explain in paragraph, thanks..

Q2 & Q3 (show the working below.)

Which of the following may be responsible for the prevalence of active versus passive investment managemen A. Forecasting errors B. Conservatism C. Regret avoidance D. Mental accounting E. Overconfidence Technical analysis aims to : I. Identify and describe past and present price movement. II. Provide a descriptive representation of market action. III. Help the investors determine the exact price level when reversal will occur in the market. IV. Help the investors make inferences about potential price action based on the assumption that price patterns repeat to some reasonable degree. A. Only III and IV are correct. B. Only I, II, and IV are correct. C. Only II, III, and IV are correct. D. All are correct. You would like to buy 200 shares of Golden Company Limited which is currently selling for $70 per share. The initial margin is 50% and maintenance margin is 30%. You sell the stock one year later after the price has increased by 30%. If the interest rate on a margin loan was 10% p.a. and the stock paid a dividend per share (DPS) of $2 during the year What is the rate of return (in \%, round up to two decimal places) on your investment