Statistics for three stocks, A, B and C, are shown in the following tables:

Standard Deviation of Returns
Stock	A	B	C
Standard Deviation (%)	40	20	40
Correlations of Returns
Stock	A	B	C
A B C	1	0.90 1	0.50 0.10 1.00

Only on the basis of the information provided in the tables, and given a choice between a portfolio made up of equal amounts of stocks A and B or a portfolio made up of equal amounts of stocks B and C, which portfolio would you recommend? Show calculations for your choice.