True or False. Briefly explain your answers.

a. If two assets are available, with the same variance and zero correlation, the minimum-variance portfolio has half the variance of the individual assets.

b.In the absence of a riskless asset, an innitely risk-averse individual will choose to hold the global minimum variance portfolio of risky assets.

c.The benets of diversication are very large for portfolios that already contain at least 100 stocks.