Please refer to the variance covariance and mean return data for a portfolio of three assets, in the attached spreadsheet. What is the mean return of the portfolio and the variance of the portfolio?

	a.	Mean = 8.2%; Variance = 0.1234
	b.	Mean = 6.35%; Variance = 0.5580
	c.	Mean = 8.2%; Variance = 1.567
	d.	Mean = 9.45%; Variance = 0.1561

	Variance-covariance, S					Mean returns E(r)
	0.10	0.01	0.03			6%
	0.01	0.30	0.06			8%
	0.03	0.06	0.40			10%
Portfolio x	0.30	0.30	0.40