b.Today, ABC mobile, one of the major telecommunication service provider in Hong Kong closed at $50. Assume that the price next year will be $35 if U.S. economy is still in a recession, $55 if the economy is normal and $70 if the economy is expanding. The probabilities of recession, normal times and expansion are 0.2, 0.7 and 0.1 respectively. ABC mobile pays no dividend and has a correlation of 0.8 with the market portfolio. Another telecommunication service provider, Banana Ltd has an expected return of 6%, a standard deviation of 25%, a correlation of 0.5 with the market portfolio. The market portfolio has a standard deviation of 15%. What are their standard deviation and beta of ABC stock return?