The Condition for Optimal Portfolio Choice Can Be Represented By $E \left[ U ^ { \prime } / \left( 1 + r _ { f } \right) \right] = 0$

Multiple Choice

The condition for optimal portfolio choice can be represented by:

A) $E \left[ U ^ { \prime } / \left( 1 + r _ { f } \right) \right] = 0$ .
B) $E \left[ U ^ { \prime } \left( r - r _ { f } \right) \right] = 0$ .
C) $E \left[ U ^ { \prime } r / \left( 1 + r _ { f } \right) \right] = 0$ .
D) $E \left[ U ^ { \prime } ( 1 + r ) \right] = 0$ .