7. Which corporate bond has the highest yield? a) Aaa (AAA) b) A c) Baa (BBB) d) B 8. Credit rating agencies: a) Advise investors on portfolio choice b) Regulate the corporate bond market c) Address asymmetric information by providing an assessment of the likelihood of default d) Place securities with investors 9. Investors build a portfolio of multiple securities to: a) Improve the returns on their investments b) Avoid inflation c) Lower the risk on the funds that they have invested d) Save more 10. Second mortgages: a) Have shorter maturities than first mortgages b) Have higher interest rates than first mortgages c) Have a lower claim than first mortgages d) All of the above