ally and Jack are both fully rational investors with homogeneous expectations. Sally is more risk-averse than Jack. Based on this information, which of the following statement(s) is(are) true ?

I. The standard deviation of Sallys optimal risky portfolio is lower than that of Jack's optimal risky portfolio.

II. Sally invests more in the risk-free security and less in the optimal risky portfolio than Jack does.

III. Sallys and Jacks optimal risky portfolios are the same (i.e. they hold the same securities with the same proportions) .

	A.	Only I
	B.	Only II
	C.	I and II
	D.	II and III
	E.	I, II, and III