Based on past US capital market behavior, which of the following is likely to be a true statement?

Select one:

a.Bonds have been less volatile than stocks.

b.Small stocks were too risky, so no one should hold them in his/her portfolio.

c.Common stocks of the largest companies have outperformed all other securities.

d.Treasury Bills have been the least risky investment, so it was the best investment for risk-haters.