Stocks X, Y & Z have the same expected return and risk. The correlation of returns of these stocks are shown in the table below.

	Stock X	Stock Y	Stock Z
Stock X	+1.0
Stock Y	+0.05	+1.0
Stock Z	+0.25	+0.12	+1.0

Given these correlations, which of the below has the highest Sharpe ratio?

Group of answer choices

Equal proportions of X & Y

Can't tell from the information provided - need to know the return and risk of each stock

Equal proportions of Y & Z

Equal proportions of X & Z

100% invested in either X, Y or Z