A ) The key to efficient diversification is to build a portfolio of securities that are:

	a.	Highly correlated with one another
	b.	Less than perfectly correlated with one another
	c.	Perfectly correlated with one another
	d.	Are negatively correlated with one another

B ) What is the required return for Dentrix Corporation? The risk-free rate is 3.1%, the risk premium is 7.5, the expected rate of inflation is 3.4% and the company can currently issue bonds at a YTM of 4.9%. The company's beta is estimated to be 1.06. round your answer to two decimal places and express your answer as a percentage, not as a decimal.