求这几道题的答案 大神们帮帮忙
1，Using a suitable diagram, explain the relationship between the pricingof the equity of a company that is part-financed by debt, and thepricing of a call option in the equity of the same company.

2，Under what circumstances might the actual prices of securities divergefrom the prices that are predicted by the Capital Asset Pricing Model(CAPM)?

3，What theories are available to explain the relationship between the term tomaturity and the yield to maturity of treasury bonds?