In a return-standard deviation space, which of the following statements is (are) true for
risk-averse investors? (The vertical and horizontal lines are referred to as the expected returnaxis and the standard deviation-axis, respectively.)
I) An investor's own indifference curves might intersect.
II) Indifference curves have negative slopes.
III) In a set of indifference curves, the highest offers the greatest utility.
IV) Indifference curves of two investors might intersect.
A. I and II only
B. II and III only
C. I and IV only
D. III and IV only
E. II and IV only