The McLure's are interested in adding two additional securities to their portfolio. Assume that the following options are available and you know the following key statistics about each new security and its relationship to the existing portfolio (See table below). Based on the information provided in the table which two companies would you recommend they add to their portfolio to improve diversification?

Safe Co	Risk Co	Capital Co	Value Co	Count Co.
E(r): 5%	E(r): 15%	E(r): 7.5%	E(r): 6.8%	E(r): 9%
SD: 7	SD: 20	SD: 9	SD: 8	SD: 10
R: -.27	R: 1	R: .57	R: 0	R: .78